JP4865665B2 - TV camera system - Google Patents

Description

  The present invention relates to a television camera system, and more particularly to a television camera system having an electrical interface for performing signal transmission between a television camera (camera device) and a television lens (lens device).

  There are two types of TV cameras: a large camera (EFP camera) used mainly in studios and a small camera (ENG camera) used mainly for coverage, etc. A large television lens (EFP lens) is attached to the ENG camera, and a small television lens (ENG lens) is attached to the ENG camera.

  In addition, the number of cases where an EFP lens is attached to an ENG camera is increasing. In that case, an adapter (lens supporter) for mechanically and electrically connecting the ENG camera and the EFP lens. Is used (see, for example, Patent Document 1).

Incidentally, as a specification of the interface (connector) for electrically connecting the television camera and the television lens, in the EFP camera and EFP lens, 36-pin connectors are provided on both of the mount portion. Between the EFP camera and the EFP lens, signal transmission by parallel communication or serial communication is performed through the connector. When performing parallel communication, all 36 pins of the connector are signals of a predetermined type. When used for transmission and performing serial communication, two of the 36 pins are mainly used. The two pins used for the serial communication are the 8th pin and the 18th pin, and these two pins are shared by the parallel communication and the serial communication.

  The ENG camera and the ENG lens are both provided with 12-pin connectors, and these connectors are connected through a cable. Signal transmission by parallel communication or serial communication is also performed between the ENG camera and the EFP lens through these connectors. When performing parallel communication, 11 pins out of 12 pins of the connector are used. Are used for signal transmission of a predetermined type, and when performing serial communication, two of the 12 pins of the connector are mainly used. The two pins used for serial communication are the 11th pin and the 12th pin. Of these two pins, the 12th pin is a pin dedicated to serial communication, and the 11th pin is used for parallel communication. It is shared with serial communication and the 12th pin is used only for serial communication.

In specification of such an interface, when mounting the EFP lens through the lens supporter to ENG camera, conventionally, while limiting the signal transmission between the ENG camera and the EFP lens parallel communication only, the lens In the supporter, pins used for parallel communication of the ENG camera connector (pins 1 to 11) and pins of the EFP lens connector corresponding to the pins used for the parallel communication (pins 4 to 6, 8, 12 to 18) Pin).

Japanese Patent Application Laid-Open No. 2004-228688 discloses a device that supports signal transmission in both parallel communication and serial communication when an EFP lens is attached to an ENG camera via a lens supporter. According to this, it is automatically detected whether or not the ENG camera supports serial communication. The ENG camera connector and the EFP lens connector are used depending on whether the ENG camera supports serial communication or not. The connection of each pin is automatically switched within the lens supporter. When the ENG camera does not support serial communication, a pin used for parallel communication of the ENG camera connector and a corresponding connector pin of the EFP lens are connected to perform signal transmission by parallel communication. . On the other hand, if the ENG camera supports serial communication, the connection destination of the two pins used for serial communication of the connector of the EFP lens is the serial of the connector of the ENG camera in order to perform signal transmission by serial communication. It can be switched to two pins used for communication.
Japanese Patent Laid-Open No. 07-225424 Japanese Patent No. 3799169

  However, as in Patent Document 2, when the connection of each pin between the connectors of the ENG camera and the EFP lens is automatically switched, there is a problem that the processing load and the manufacturing cost increase.

  The present invention has been made in view of such circumstances, and is a case where the camera device is provided with terminals (pins) for parallel communication and serial communication in one connector, and the camera device is originally intended for the camera device. A TV camera that can switch between parallel and serial communication methods for signal transmission between the lens device and the camera device when using an incompatible lens device. The purpose is to provide a system.

In order to achieve the above object, the television camera system according to claim 1 is configured such that a lens device of a kind that cannot be originally attached to a camera device is attached via a lens supporter, and the lens device and the camera device are provided. Camera system capable of performing signal transmission between the camera apparatus, the camera apparatus having one connector for performing signal transmission with the lens apparatus, and performing parallel communication with the connector In a television camera system having a terminal for performing serial communication with a terminal for parallel communication, a connector for parallel communication and a connector for serial communication that can be connected to a connector of the camera apparatus are provided on the lens device or the lens supporter. By connecting the parallel communication connector to the connector of the camera device, the lens device The parallel communication signal line is connected to the parallel communication terminal of the connector of the camera device, enabling signal transmission by parallel communication between the lens device and the camera device, and the connector of the camera device. By connecting the serial communication connector, the serial communication signal line from the lens device is connected to the serial communication terminal of the connector of the camera device, and serially between the lens device and the camera device. A television camera system capable of signal transmission by communication , wherein one of the parallel communication connector and the serial communication connector and the connector of the camera device are connected by a cable. It is a feature.

  According to the present invention, the signal transmission method between the lens device and the camera device is changed between parallel communication and serial communication by simply changing the connection of the connector between the lens device or the lens supporter and the camera device. be able to.

  According to a second aspect of the present invention, there is provided the television camera system according to the first aspect, wherein the parallel communication connector and the serial communication connector are provided in the lens supporter, and are provided between the lens device and the lens supporter. A predetermined signal line from the lens device is connected to each terminal of the parallel communication connector and the serial communication connector through connection of a predetermined connector.

  The present invention is an aspect of the invention described in claim 1, and shows an aspect in which a parallel communication connector and a serial communication connector are provided on a lens supporter. A conventional connection can be used between the lens apparatus and the lens supporter.

According to a third aspect of the present invention, there is provided a television camera system in which a lens device of a type that cannot be originally attached to the camera device is attached via a lens supporter, and signal transmission is performed between the lens device and the camera device. The camera device has a single connector for transmitting signals to and from the lens device, and performs serial communication with a terminal for performing parallel communication with the connector. In the television camera system including a terminal for the camera device, the lens device or the lens supporter is provided with a connector for parallel communication and a connector for serial communication that can be connected to a connector of the camera device. Parallel communication signal from the lens device by connecting a parallel communication connector Is connected to a terminal for parallel communication of the connector of the camera device, enables signal transmission by parallel communication between the lens device and the camera device, and connects the connector for serial communication to the connector of the camera device Thus, the serial communication signal line from the lens device is connected to the serial communication terminal of the connector of the camera device, thereby enabling signal transmission by serial communication between the lens device and the camera device. In the television camera system, the parallel communication connector includes two first connectors and a second connector. The first cable connector that can be attached to the first connector, the second connector, and the serial communication connector. A second cable connector attachable to the connector and a second cable connector attachable to the connector of the camera device. A cable having a cable connector, wherein the first cable connector is connected to the first connector in connection of a cable connecting each terminal of the first cable connector and the second cable connector to each terminal of the third cable connector. Mounting, mounting the second cable connector to the second connector, and mounting the third cable connector to the connector of the camera device, thereby transmitting signals by parallel communication between the lens device and the camera device. By attaching the second cable connector to the serial communication connector and attaching the third cable connector to the connector of the camera device, serial communication between the lens device and the camera device is possible. It is characterized by enabling signal transmission.

  In the present invention, only the signal line connected to the terminal used for serial communication of the connector of the camera device is changed between the signal line for parallel communication and the signal line for serial communication by selecting the connection destination of the cable connector. It is the aspect made to do.

  According to the television camera system of the present invention, the signal transmission method between the lens device and the camera device can be switched between parallel communication and serial communication with an inexpensive configuration.

  The best mode for carrying out the television camera system according to the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is an external side view showing a configuration of a television camera system to which the present invention is applied. The television camera system 10 shown in the figure includes an EFP lens 12, an ENG camera 14, and a lens supporter 16. The EFP lens 12 is a lens device for an EFP camera that is used by being fixed to a tripod mainly in a studio or the like. Lens device.

  The ENG camera 14 is a camera device that is mainly carried by a news gathering and supported by a cameraman with a shoulder or the like, and is originally equipped with a small lens device (ENG lens) instead of the EFP lens shown in FIG. It is a camera device used.

  The lens supporter 16 is an adapter that allows the EFP lens 12 and the ENG camera 14 that are used differently to be mounted and used. For example, the lens supporter 16 is fixed on a tripod. The lens supporter 16 includes a horizontal base 18 and a partition 20 standing vertically with respect to the base 18, and the EFP lens 12 on the front side (left side in the drawing) of the partition 20. The ENG camera 14 is fixed to the rear side (right side in the figure).

  The partition 20 is provided with an opening (not shown). On the other hand, on the back of the EFP lens 12, a bayonet mount provided at the rear end of the lens barrel that accommodates the photographing optical system protrudes, and the bayonet mount passes through the opening of the screen part 20 to form a screen. It is connected to the mount of the ENG camera 14 fixed to the rear side of the unit 20. As a result, the ENG camera 14 is mounted with the photographing optical system of the EFP lens 12.

Further, the EFP lens 12 and the ENG camera 14 are electrically connected via a lens supporter 16 so that various signals can be exchanged.

  FIG. 2 is a diagram showing a connection mode of electrical connectors between devices in the related art in which signal transmission between the EFP lens 12 and the ENG camera 14 is performed by parallel communication.

  A 36-pin connector 30 for exchanging various signals with a camera device (usually an EFP camera) is provided on the back side of the EFP lens 12, and on the front side of the screen portion 20 of the lens supporter 16. A 36-pin lens side connector 32 that can be connected to the connector 30 is provided. When the EFP lens 12 is fixed to the lens supporter 16, the connectors 30 and 32 are also directly connected.

  The ENG camera 14 is provided with a 12-pin connector 34 for exchanging various signals with a lens device (usually an ENG lens). A cable 36 is sent out from the back side of the partition 20 of the lens supporter 16, and a 12-pin camera-side connector 38 connected to the connector 34 of the ENG camera 14 is provided at the end of the cable 36. The camera side connector 38 and the connector 34 of the ENG camera 14 are connected.

  On the other hand, the connector 30 of the EFP lens 12 and the lens side connector 32 of the lens supporter 16 have 36 pins, whereas the connector 34 of the ENG camera 14 and the camera side connector 38 of the lens supporter 16 have 12 pins. (Number of signal lines) is different. Therefore, in the lens supporter 16, the lens-side connector 32 is adapted to match the type of signal line of each pin of the connector 34 (type of signal input / output from each pin) when the ENG camera 14 performs parallel communication. Of these 36 pins, only the pin of the signal line of the type necessary for the ENG camera 14 is connected to each corresponding pin of the camera side connector 38 by an internal transmission line.

  FIG. 3 is a diagram showing a connection state of signal lines when signal transmission between the EFP lens 12 and the ENG camera 14 is performed by parallel communication according to the connection mode of FIG. In the figure, a lens side transmitting / receiving unit 50 is mounted in the EFP lens 12 and shows a circuit unit for transmitting and receiving signals exchanged with the camera device, and a camera side transmitting / receiving unit 52 is mounted in the ENG camera 14. 2 shows a circuit unit that transmits and receives signals exchanged with the lens device.

  The terminals 1 to 12 of the camera side transmitting / receiving unit 52 indicate terminals connected to the pins of the connector 34 of the ENG camera 14 shown in FIG. 2, and the numbers of the terminals are the connectors to which the terminals are connected. 34 shows the number of each pin. Further, the terminals Nos. 4 to 6, 8, and 12 to 18 of the lens side transmission / reception unit 50 indicate terminals connected to the pins of the connector 30 of the EFP lens 12 shown in FIG. The number indicates the number of each pin of the connector 30 to which each is connected. In the lens-side transmitting / receiving unit 50, detailed drawings are omitted for the terminals connected to the other numbered pins of the connector 30.

  When the EFP lens 12 and the ENG camera 14 are connected via the lens supporter 16 as shown in FIG. 2, the 4th, 6th, 8th, and 12th to 18th terminals of the lens side transmitting / receiving unit 50 are connected as shown in FIG. The signal lines 1 to 3 and 5 to 11 are connected to the terminals 1 to 3 and 5 to 11 of the camera-side transmitting / receiving unit 52.

  The terminals 1 to 3 and 5 to 11 of the camera-side transmitting / receiving unit 52 are terminals of signal lines used in parallel communication. When performing parallel communication in the EFP lens 12, they match the types of these signal lines. The 4th, 6th, 8th, 12th to 18th terminals of the lens side transmitting / receiving unit 50 are connected through the signal lines 1 to 3 and 5 to 11. This enables signal transmission by parallel communication between the EFP lens 12 and the ENG camera 14. In addition, although the terminal of the other signal line of the lens side transmission / reception part 50 connected to pins other than the 4th to 6th, 8th, and 12th to 18th pins of the connector 30 of the EFP lens 12 is omitted in FIG. The camera side transmitting / receiving unit 52 is not connected and is in an open state.

  In the configuration of such a conventional television camera system, even if the EFP lens 12 and the ENG camera 14 support serial communication as well as parallel communication as a signal transmission method, Transmission cannot be performed, and the signal transmission is limited to parallel communication only.

  That is, in the EFP lens 12, when performing serial communication, the 8th and 18th terminals (8th and 18th pin signal lines out of 36 pins of the connector 30) also used in the parallel communication of the lens side transmitting / receiving unit 50 are used. Is done. These terminals are connected to the 9th and 8th terminals of the camera side transmission / reception unit 52 when performing parallel communication as shown in FIG.

  On the other hand, the ENG camera 14 uses the 11th and 12th terminals (the 11th and 12th pin signal lines of the 12 pins of the connector 34) of the camera transmission / reception unit 52 for serial communication.

  Therefore, when performing serial communication, it is necessary to connect the 8th and 18th terminals of the lens side transmission / reception unit 50 to the 11th and 12th terminals of the camera side transmission / reception unit 52.

  Since the conventional television camera system shown in FIGS. 2 and 3 does not enable switching to such a connection state, signal transmission between the EFP lens 12 and the ENG camera 14 is limited to parallel communication. ing.

  Therefore, in the present embodiment described below, the EFP lens 12 or the lens supporter 16 is changed without changing the ENG camera 14 shown in FIGS. The connection destination of the terminal No. 9 can be switched between the terminals No. 9 and No. 8 (in the case of parallel communication) and the No. 11 and No. 12 terminals (in the case of serial communication) of the camera side transmission / reception unit 52, etc. Signal transmission between the lens 12 and the ENG camera 14 can be performed by both parallel communication and serial communication.

  FIG. 4 is a first diagram showing a connection mode of electrical connectors between devices when signal transmission between the EFP lens 12 and the ENG camera 14 can be performed by both parallel communication and serial communication. It is a figure of embodiment. The same components as those in FIG. 2 are denoted by the same reference numerals as those in FIG. 2, and detailed description thereof is omitted.

  In the same figure, when the EFP lens 12 is fixed to the lens supporter 16, a 36-pin connector 30 provided on the back side of the EFP lens 12 and the screen part 20 of the lens supporter 16 are provided, as shown in FIG. A 36-pin connector 30 provided on the front surface is connected.

  The cable 36 is sent out from the back side of the partition 20 of the lens supporter 16 in the same manner as in FIG. 2, and a 12-pin camera side connector 38 that can be connected to the connector 34 of the ENG camera 14 is provided at the end of the cable 36. ing. The camera-side connector 38 is connected to the connector 34 of the ENG camera 14 when performing parallel communication as in FIG. Hereinafter, the camera side connector 38 is referred to as a parallel connector 38.

  On the other hand, unlike FIG. 2, a cable 60 different from the cable 36 is sent to the back side of the partition 20, and a serial connector 62 that can be connected to the connector 34 of the ENG camera 14 is provided at the end of the cable 60. It has been. The serial connector 62 is connected to the connector 34 of the ENG camera 14 when performing serial communication.

  When the user wants to use parallel communication as the signal transmission method between the EFP lens 12 and the ENG camera 14, the parallel connector 38 of the lens supporter 16 is connected to the connector 34 of the ENG camera 14, and serial communication is performed. In order to achieve this, if the serial connector 62 of the lens supporter 16 is connected to the connector 34 of the ENG camera 14, signal transmission can be performed in a desired manner.

  FIG. 5 is a diagram showing a connection state of signal lines between the EFP lens 12 and the ENG camera 14 in such a connector connection mode. Components that are the same as or similar to those in FIG. 3 are given the same reference numerals as those in FIG. Also, terminals and signal lines connected between the lens-side transmitting / receiving unit 50 and the camera-side transmitting / receiving unit 52 when performing parallel communication, the terminals other than the 8th and 18th terminals of the lens-side transmitting / receiving unit 50, and the camera-side transmitting / receiving unit 52, terminals other than Nos. 8, 9, 11, and 12 and signal lines connecting these terminals are indicated by one terminal (numbers LP and CP) and one signal line P, respectively (the followings) The same applies to other embodiments).

  In the figure, the numbers of the pins of the parallel connector 38 and the serial connector 62 of the lens supporter 16 are the numbers of the pins of the connector 34 connected when the connectors 38 and 62 are attached to the connector 34 of the ENG camera 14. The number is shown.

  The 8th and 18th terminals of the lens side transmitting / receiving unit 50 are connected to the 9th and 8th pins of the parallel connector 38. In addition, the LP number terminal of the lens side transmitting / receiving unit 50 is connected to the CP number pin of the parallel connector 38, and the 12th pin of the parallel connector 38 is opened. Note that the 11th pin of the parallel connector 38 is connected to the 16th terminal of the lens side transmitting / receiving unit 50, but is omitted in the figure.

  According to this, when the parallel connector 38 is attached to the connector 34 of the ENG camera 14, the 8th and 18th terminals of the lens side transmission / reception unit 50 are connected to the 9th and 8th terminals of the camera side transmission / reception unit 52. , 8 are connected. Further, other terminals (LP number terminals including 16th) used in parallel communication of the lens side transmitting / receiving unit 50 are also connected to CP number terminals (including 11th terminal) of the camera side transmitting / receiving unit 52. Therefore, signal transmission by parallel communication becomes possible.

  On the other hand, the 8th and 18th terminals of the lens side transmitting / receiving unit 50 are connected to the 11th and 12th pins of the serial connector. The other pins of the serial connector 62 are open.

  According to this, when the serial connector 62 is attached to the connector 34 of the ENG camera 14, the 8th and 18th terminals of the lens side transmission / reception unit 50 are connected to the 11th and 12th terminals of the camera side transmission / reception unit 52. , 12. Therefore, signal transmission by serial communication is possible.

  FIG. 6 is a second view showing the connection mode of the electrical connector between the devices when signal transmission between the EFP lens 12 and the ENG camera 14 can be performed by both parallel communication and serial communication. It is a figure of embodiment. 4 that are the same as or similar to those in FIG. 4 are assigned the same reference numerals as in FIG. 4 and detailed descriptions thereof are omitted.

  In this figure, when the EFP lens 12 is fixed to the lens supporter 16, a 36-pin connector 30 provided on the back side of the EFP lens 12, and a screen part of the lens supporter 16, as shown in FIGS. A 36-pin connector 30 provided on the front surface of 20 is connected.

  Unlike the case of FIG. 4, a 12-pin parallel connector 38 and a serial connector 62 are provided directly on the wall surface on the back surface of the screen portion 20 of the lens supporter 16 without providing the cables 36 and 60. These connectors 38 and 62 can be fitted with a 12-pin connector 72 provided at one end of the cable 70, and a 12-pin connector 74 provided at the other end of the cable 70 is connected to the connector 34 of the ENG camera 14. It can be installed.

  When the user wants to use parallel communication as the signal transmission method between the EFP lens 12 and the ENG camera 14, the cable 70 connects the parallel connector 38 of the lens supporter 16 and the connector 34 of the ENG camera 14. Connecting. That is, the connector 72 of the cable 70 is attached to the parallel connector 38, and the connector 74 of the cable 70 is attached to the connector 34 of the ENG camera 14.

  On the other hand, when the signal transmission method between the EFP lens 12 and the ENG camera 14 is to be serial communication, the serial connector 62 of the lens supporter 16 and the connector 34 of the ENG camera 14 are connected by a cable 70. To do. That is, the connector 72 of the cable 70 is attached to the serial connector 62, and the connector 74 of the cable 70 is attached to the connector 34 of the ENG camera 14.

  FIG. 7 is a diagram showing a connection state of signal lines between the EFP lens 12 and the ENG camera 14 in such a connector connection mode. Constituent elements that are the same as or similar to those in FIG. 5 are assigned the same reference numerals as in FIG.

  5, the difference from the configuration of FIG. 5 is that the parallel connector 38 or serial connector 62 of the lens supporter 16 is not directly connected to the connector 34 of the ENG camera 14, but the parallel connector 38 or serial connector. The connector 62, each pin, and the connector 34 of the ENG camera 14 are connected via a cable 70.

  When the connector 72 of the cable 70 is attached to the parallel connector 38 and the connector 74 of the cable 70 is attached to the connector 34 of the ENG camera 14, the 8th and 18th terminals of the lens side transmission / reception unit 50 are connected to the camera side transmission / reception unit 52. The signal lines 9 and 8 are connected to the ninth and eighth terminals. Further, other terminals (LP number terminals including 16th) used in parallel communication of the lens side transmitting / receiving unit 50 are also connected to CP number terminals (including 11th terminal) of the camera side transmitting / receiving unit 52. Therefore, signal transmission by parallel communication becomes possible.

  On the other hand, when the connector 72 of the cable 70 is attached to the serial connector 62 and the connector 74 of the cable 70 is attached to the connector 34 of the ENG camera 14, the 8th and 18th terminals of the lens side transceiver 50 are connected to the camera side transceiver. The signal lines 11 and 12 are connected to terminals 11 and 12 of 52. Therefore, signal transmission by serial communication is possible.

  In the first and second embodiments, the parallel connector 38 and the serial connector 62 are provided on the lens supporter 16, but either one or both are provided on the EFP lens 12. Also good.

  FIG. 8 is a third view showing the connection mode of the electrical connectors between the devices when signal transmission between the EFP lens 12 and the ENG camera 14 can be performed by both parallel communication and serial communication. It is a figure of embodiment. 2 that are the same as or similar to those in FIG. 2 are denoted by the same reference numerals as those in FIG.

  In the same figure, when the EFP lens 12 is fixed to the lens supporter 16, a 36-pin connector 30 provided on the back side of the EFP lens 12 and the screen part 20 of the lens supporter 16 are provided, as shown in FIG. A 36-pin connector 30 provided on the front surface is connected.

  The cable 36 is sent out from the back side of the partition 20 of the lens supporter 16 in the same manner as in FIG. 2, and a 12-pin camera side connector 38 that can be connected to the connector 34 of the ENG camera 14 is provided at the end of the cable 36. ing. The camera-side connector 38 is connected to the connector 34 of the ENG camera 14 regardless of whether parallel communication or serial communication with FIG. 2 is performed.

  On the other hand, the EFP lens 12 is provided with, for example, a 4-pin parallel connector 80 and a serial connector 82 other than the connector 30. Further, the cable 36 is provided with a branched cable 36 ′, and a connector 84 that can be attached to the connectors 80 and 82 is provided at an end thereof.

  When the user wants to use parallel communication as the signal transmission method between the EFP lens 12 and the ENG camera 14, the connector 84 of the cable 36 'is attached to the parallel connector 80 of the EFP lens 12, and serial communication is performed. In order to achieve this, if the connector 84 of the cable 36 ′ is attached to the serial connector 82 of the EFP lens 12, signal transmission is performed in a desired manner.

  FIG. 9 is a diagram showing a connection state of signal lines between the EFP lens 12 and the ENG camera 14 in such a connector connection mode. Components that are the same as or similar to those in FIG. 3 or FIG. 5 are given the same reference numerals as those in FIG. 3 or FIG.

  In the figure, the CP number pin of the camera side connector 38 of the lens supporter 16 is connected to the LP number terminal of the lens transmission / reception unit 50, and the 8, 9, 11, and 12 pins of the camera side connector 38 are the cable. It is connected to the 8th, 9th, 11th and 12th pins of the connector 84 of 36 '.

  On the other hand, the 8th, 9th, and 11th pins of the parallel connector 80 of the EFP lens 12 are connected to the 18th, 8th, and 16th terminals of the lens side transmission / reception unit 50, and the 12th pin is open.

  In addition, the 11th and 12th pins of the serial connector 82 of the EFP lens 12 are connected to the 8th and 18th terminals of the lens side transmitting / receiving unit 50, and the 8th and 9th pins are open.

  Therefore, when the camera side connector 38 of the lens supporter 16 is attached to the connector 34 of the ENG camera 14 and the connector 84 of the cable 36 ′ is attached to the parallel connector 80 of the EFP lens 12, The numbered terminal is connected to the 9th and 8th terminals of the camera side transmitting / receiving unit 52, and the 16th terminal of the lens transmitting / receiving unit 50 is connected to the 11th terminal of the camera side transmitting / receiving unit 52. Thereby, signal transmission by parallel communication becomes possible.

  On the other hand, when the camera side connector 38 of the lens supporter 16 is attached to the connector 34 of the ENG camera 14 and the connector 84 of the cable 36 ′ is attached to the serial connector 82 of the EFP lens 12, No. terminals are connected to No. 11 and No. 12 terminals of the camera side transmitting / receiving unit 52. Therefore, signal transmission by serial communication is possible.

  As described above, in the first to third embodiments, switching is performed between parallel communication and serial communication depending on the connection destination of the cable connector. However, switching is performed by a manually operated switch. Also good.

  FIG. 10 is a fourth diagram illustrating a connection mode of electrical connectors between devices when signal transmission between the EFP lens 12 and the ENG camera 14 can be performed by both parallel communication and serial communication. It is a figure of embodiment. The connection mode shown in the figure is exactly the same as the conventional connection mode shown in FIG. On the other hand, the lens supporter 16 is provided with a switch 100.

  FIG. 11 is a diagram illustrating a connection state of signal lines between the EFP lens 12 and the ENG camera 14. As shown in FIG. 10, the switch 100 of the lens supporter 16 connects the 8th and 18th terminals of the lens side transmission / reception unit 50 to the 9th and 8th terminals of the camera side transmission / reception unit 52, and the camera side transmission / reception unit. It is possible to switch between the case of connection to the terminal No. 11 and 12 of 52. Accordingly, when it is desired to perform parallel communication, the switch 100 connects the 8th and 18th terminals of the lens side transmission / reception unit 50 to the 9th and 8th terminals of the camera side transmission / reception unit 52 to perform serial communication. The switch 100 connects the 8th and 18th terminals of the lens side transmission / reception unit 50 to the 11th and 12th terminals of the lens side transmission / reception unit 52.

  The switch 100 may be provided in the EFP lens 12. It may be in a lens supporter.

  According to the first to fourth embodiments described above, whether the ENG camera 14 as in the invention described in Japanese Patent No. 3799169 cited in the column “Problems to be Solved by the Invention” is compatible with serial communication. There is no determination means for determining whether the signal line connection between the EFP lens 12 and the ENG camera 14 is automatically switched between parallel communication and serial communication according to the determination result of the determination means. Without any means, the connection of the signal line between the EFP lens 12 and the ENG camera 14 is switched between parallel communication and serial communication by operating a cable connection or switch at the user's discretion. Therefore, it can be realized with a simple and inexpensive configuration, and when a communication error occurs during serial communication, it automatically switches to a parallel connection, and the problem that it takes time to recover can be solved.

FIG. 1 is an external side view showing a configuration of a television camera system to which the present invention is applied. FIG. 2 is a view showing a connection mode of electrical connectors between devices in the related art in which signal transmission between the EFP lens and the ENG camera is performed by parallel communication. FIG. 3 is a diagram showing a connection state of signal lines when signal transmission between the EFP lens and the ENG camera is performed by parallel communication according to the connection mode of FIG. FIG. 4 shows a first embodiment showing a connection mode of electrical connectors between devices when signal transmission between an EFP lens and an ENG camera can be performed by both parallel communication and serial communication. FIG. FIG. 5 is a diagram showing a connection state of signal lines between the EFP lens and the ENG camera in the connection mode of FIG. FIG. 6 is a second embodiment showing a connection mode of electrical connectors between devices when signal transmission between an EFP lens and an ENG camera can be performed by both parallel communication and serial communication. FIG. FIG. 7 is a diagram illustrating a connection state of signal lines between the EFP lens and the ENG camera in the connection mode of FIG. FIG. 8 shows a third embodiment of the electrical connector connection mode between devices when signal transmission between the EFP lens and the ENG camera can be performed by both parallel communication and serial communication. FIG. FIG. 9 is a diagram showing a connection state of signal lines between the EFP lens and the ENG camera in the connection mode of FIG. FIG. 10 is a diagram illustrating a fourth embodiment showing a connection mode of electrical connectors between devices when signal transmission between an EFP lens and an ENG camera can be performed by both parallel communication and serial communication. FIG. FIG. 11 is a diagram illustrating a connection state of signal lines between the EFP lens and the ENG camera in the connection mode of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Television camera system, 12 ... EFP lens, 14 ... ENG camera, 16 ... Lens supporter, 30, 34 ... Connector, 32 ... Lens side connector, 38 ... Camera side connector (connector for parallel), 50 ... Lens side transmission / reception part 52 ... Camera side transmission / reception unit, 62 ... Serial connector, 70 ... Cable, 80 ... Parallel connector, 82 ... Serial connector, 100 ... Switch

Claims (3)

A television camera system that allows a lens device of a type that cannot be originally mounted to a camera device to be mounted via a lens supporter, and that enables signal transmission between the lens device and the camera device, In the television camera system, the camera device has one connector for performing signal transmission with the lens device, and the connector includes a terminal for performing parallel communication and a terminal for performing serial communication. ,
The lens device or the lens supporter is provided with a parallel communication connector and a serial communication connector connectable to a connector of the camera device,
By connecting the parallel communication connector to the connector of the camera device, a signal line for parallel communication from the lens device is connected to a terminal for parallel communication of the connector of the camera device, and the lens device and the camera Enables signal transmission by parallel communication with the device,
By connecting the serial communication connector to the connector of the camera device, the signal line for serial communication from the lens device is connected to the terminal for serial communication connector of the camera device, the said lens device camera A television camera system capable of signal transmission by serial communication with a device ,
A television camera system, wherein one of the parallel communication connector and the serial communication connector and the connector of the camera device are connected by a cable .   The parallel communication connector and the serial communication connector are provided in the lens supporter, and the parallel communication connector and the serial communication connector are connected through a predetermined connector connection between the lens device and the lens supporter. 2. The television camera system according to claim 1, wherein a predetermined signal line from the lens device is connected to each terminal. A television camera system that allows a lens device of a type that cannot be originally mounted to a camera device to be mounted via a lens supporter, and that enables signal transmission between the lens device and the camera device, In the television camera system, the camera device has one connector for performing signal transmission with the lens device, and the connector includes a terminal for performing parallel communication and a terminal for performing serial communication. ,
The lens device or the lens supporter is provided with a parallel communication connector and a serial communication connector connectable to a connector of the camera device,
By connecting the parallel communication connector to the connector of the camera device, a signal line for parallel communication from the lens device is connected to a terminal for parallel communication of the connector of the camera device, and the lens device and the camera Enables signal transmission by parallel communication with the device,
By connecting the serial communication connector to the connector of the camera device, a signal line for serial communication from the lens device is connected to a terminal for serial communication of the connector of the camera device, and the lens device and the camera A television camera system capable of signal transmission by serial communication with a device,
The parallel communication connector comprises two first connectors and a second connector,
A first cable connector attachable to the first connector; a second cable connector attachable to the second connector and the serial communication connector; and a third cable connector attachable to the connector of the camera device. A cable that connects each terminal of the first cable connector and the second cable connector to each terminal of the third cable connector, wherein the first cable connector is attached to the first connector; By attaching two cable connectors to the second connector and attaching the third cable connector to the connector of the camera device, signal transmission by parallel communication between the lens device and the camera device is enabled.
By attaching the second cable connector to the serial communication connector and attaching the third cable connector to the connector of the camera device, signal transmission by serial communication is possible between the lens device and the camera device. features and to ruthenate Levi camera system to a.

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