JP3154201B2 - Remote control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device useful for a portable small electronic device, and more particularly to an improvement of a remote control device capable of transmitting an ID code.

[0002]

2. Description of the Related Art As a remote control device, a device for selecting an infrared ray using a digital code format or performing an operation such as turning on a power supply has been widely used in the world. One of such digital code formats is SIRCS (circus: Standard code, Infrared Remote Control System) proposed by the present applicants.
It has been known. The Sark scan code is chronologically arranged as shown in FIG. 8, for identifying a transmission start following the guide pulse 16 2 ⁰ from beginning 12-bit or, using a binary code of 15 bits, the first The upper 7-bit transmission code is a command code 17 for identifying which operation key of the remote control transmission device has been operated, and the lower 5 bits (12-bit circuit) or the lower 8 bits (15-bit circuit) are products. The category code indicates a category, for example, a TV receiver, a tape recorder, a tuner, and the like.

When transmitting using such a transmission code, the category code 18 is assigned the lower 5 bits (8 bits) of 12 bits (15 bits).
Category code 1 when used in combination with other companies' products because the number of types as code numbers is smaller than the number of products
8 has a problem of causing interference between a plurality of receiving apparatuses.

In order to eliminate such adverse effects, Japanese Patent Laid-Open Publication No.
Japanese Patent No. 6098 proposes a remote control device configured to transmit an ID code from a remote control transmission device side so that interference does not occur even if a plurality of electronic devices having the same category code are present on the receiver side. I have.

In the above-mentioned publication, a plurality of ID code set keys for generating ID codes are provided, and the ID codes are set by operating the set keys.

[0006]

According to the gazette described in the above conventional configuration, the ID is determined by using a switch for several bits.
In order to identify the code, it is possible to prevent some interference when there are multiple devices of other companies indoors. However, when operating a portable tape recorder etc. outdoors, several bits of ID code In this case, the probability of overlapping is high, which may cause interference. Therefore, it is necessary to increase the number of bits.

However, when the number of bits is increased, a plurality of switches are conventionally provided on the housing side of a small remote control signal transmitting apparatus for setting an ID code, which not only causes a problem in design but also causes a problem. In addition, setting of an ID code for each bit has a problem that hardware (the number of switches) increases and user operation becomes complicated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. It is an object of the present invention to generate an ID code having a large number of bits by software without increasing hardware, and to realize a portable telephone. It is an object of the present invention to provide a remote control device capable of easily generating an ID code without causing interference even when the device is used outdoors for controlling electronic devices and the like.

[0009]

According to the present invention, as shown in FIG. 1, an information processing means 11 configured to transmit an ID code from a remote control signal transmitting device (hereinafter, referred to as a commander). In a remote control device having a microcomputer (hereinafter, referred to as a microcomputer), an ID code generating means 6 for generating an ID code, a means 8 for detecting the start and end of operation of the ID code generating means 6,
Timer 9 used to count from start to end of operation
And latch means 7 for latching the value of the timer 9 at the end of counting, and memory means 10 for storing the end value of the latch means 7 as an ID value.

[0010]

In the remote control device according to the present invention, when the switch 6 of the ID code generating means is pressed, the timer 9 starts counting, and when the switch 6 is connected or disconnected, the time is latched, and the final value is used as the ID. Since the data is stored in the memory 9, the user can set an ID code with a large number of bits by a very simple operation, and only requires a single ID code generation switch on the commander side. Even if there are multiple remote commands, a commander that does not cause interference by remote control operation can be obtained.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The control device of the present invention will be described below in detail with reference to FIGS. FIG. 1 shows an overall functional system diagram of the commander of the control device of the present invention.

In FIG. 1, reference numeral 1 denotes a key matrix, which is a group of switches for performing operations corresponding to a remote control mode such as channel selection, volume adjustment, power on / off, and the like. They are arranged in a predetermined shape. Then, a key input in a predetermined remote control mode is input to the key scan circuit 2 in the CPU 11 constituting the remote control circuit.

The key scan circuit 2 includes a key matrix 1
, A key matrix scan signal is sequentially output, which output signal is input to which key matrix is determined, and the data setting circuit 3 generates a data code corresponding to the key.

The data code is decoded by a data setting circuit 3 such as a data encoder, and is modulated at a predetermined frequency via a waveform generation circuit 4 and a waveform output circuit 5. The data code is supplied to an infrared light emitting diode and received by a remote controller. Sent to the device side.

The ID code generating means for generating the ID code is constituted by a single push-type switch 6 whose one end is grounded. The shape of the knob of the pressing portion can be configured as shown in FIGS. 2A and 2B. And 2A is a plan view of a main part, and FIG. 2B is a side sectional view of the main part.
A knob 13 is slidably disposed in a through-hole 14 formed in a part of the knob 2. Lower the height H of the knob 13, punch a recess 15 in the center of the knob 13,
The ID generating switch 6 can be turned on by pressing the concave portion 15 with a pen tip or the like.

When such an ID generation switch 6 is turned on, the CPU 11 operates a timer 9 via a switch scan circuit 8 for a switch input. That is, the time from when the ID generation switch 6 is pressed to when the ID generation switch 6 is separated is determined by the CPU.
11 is counted by a counting means (counter).

The ID generation value is determined using the latch circuit 7 of the timer when the ID generation switch 6 is released.
The value of the timer 9 at that time is stored in the memory 10 as an ID. The ID data is supplied from the memory 10 to the data setting circuit 3, and the data setting circuit 3 sets the guide code 16, the command code 17, the category code 18 and the ID code 19 in time series as shown in FIG. Then, the signal is transmitted to the receiving device as a modulated wave via the waveform output circuit 5 and the infrared light emitting diode.

[0018] Figure 3 ID generation switch 6 shows a flowchart of the ID code generating timer 9 of CPU11 in the first step ST ₁ of the pressing timing starts counting.

In the next second step ST ₂ , the CPU 11 determines whether or not the ID generation switch 6 has been connected or disconnected, and N
For O is returned to the beginning of the second step ST _2, Y
Timer latch is performed proceeds to the third step ST ₃ if ES, the final value of the timer count is latched.

In the next fourth step ST ₄ , the value latched by the timer 9 is stored in the memory 10, and is returned after being supplied to the data setting circuit 3. The same flow as above is repeated to determine the ID code. Is done.

The timer 10 starts counting from the initial value 0, and when the digit overflows, the counting is repeated from 0 again.

When the ID code is determined as described above, FIG.
Is supplied to the data setting circuit 3 and transmitted in a format with ID shown in FIG.

In the above configuration, the ID generation switch 6 is pressed for a predetermined time so that the ID set by the user takes a random value.

For example, when a 15-bit ID is used and the clock cycle of the timer 9 is 16.67 μs, the user is instructed to press the ID generation switch for 1 second or more. This one second is a value set so that the generated ID takes a random value, and the time for the counter to make one round of 15 bits can be calculated as follows. 32768 (2 ¹⁵ ) × 16.67 μs ≒ 0.546 seconds Therefore, if the ID generation switch 6 is kept pressed for one second, the counter value will make a full round, and it is possible to generate a random ID value.

When a random ID value is calculated by the method described above, if the number of bits of the ID code is 15 bits or more, the user operates the ID generation switch so that the count satisfies the time required to make a full round of 15 bits or more. Of course, the time for pressing 6 is set.

As described above, it is basically possible to generate a random ID value by setting the pressing time during which the user presses the ID generating switch 6. The ID may be used in combination with a function having randomness completely unrelated to the ID.

For example, the product or the sum of the number of times the commander CPU has entered the stop mode is calculated. This stop mode is a mode in which a part of the program is stopped in a state where the oscillation of the main clock is stopped in order to reduce power consumption when the commander is not used. Others according to such functions can be appropriately selected.

As described above, the ID code transmitted on the commander side is transmitted to a remote control signal receiving apparatus (for example, a camcorder in a portable camera-integrated VTR or the like).
Need to register with the side. In this registration method, the receiver is set to the “ID registration mode”, and in this state, data with ID is transmitted from the commander, or a command dedicated to registration with ID is transmitted. Examples 3 to 3 will be described. (A) Transmit the ID code in a packet. (B) Send a registration-only command with an ID. (C) The registered command is transmitted as a normal command with an ID. And so on.

First, in the case of (a), the camcorder of the receiving apparatus is set to the ID registration mode, and the commander transmits a registration command with ID in a packet. I on the commander side
A D registration key is provided, and a packet with an ID is transmitted to the camcorder by pressing the ID registration key.

FIG. 5 shows an example of the transmission format of this ID-added packet. In FIG. 5, reference numeral 20 denotes an ID start word, which is a code other than the timer reservation time setting. Next, the ID registration frame 21 indicates that the mode is the ID registration mode.
In 2, an ID code indicating an ID value set by the user is transmitted by two frames, and then a check word 23 and an end frame 24 are transmitted to complete ID registration. In this case, the transmission time until ID registration on the camcorder side is 8 frames × 45.
It takes a relatively long transmission time of ms = 0.36 seconds and requires a registration key.

According to the ID registration method (b), a command registration key is required, but ID transmission can be performed with a short transmission time.

In the case of (b) also, the camcorder is set in the ID registration mode, and the commander presses the registration key to enter the ID registration mode.
A registration-only command with D is transmitted. FIG. 6 shows the transmission format side in this case. In this case, the ID-dedicated registration-dedicated commands ID _{1 to} ID ₃ are transmitted in three frames, and the transmission time in this case is 3 frames × 45 ms = 0.
This can be as short as 135 seconds.

Further, according to the registration method as described in (c), transmission can be performed in a short time without the need for a registration key.

That is, the camcorder side is set to the ID registration mode, and instead of the ID-dedicated registration-dedicated command 22 in the format shown in FIG. In other words, by transmitting the circus with ID, the ID can be registered in the camcorder without requiring the registration key on the commander side. At this time, if the format is 3 frames as in FIG. 6, the transmission can be performed with a transmission time of 3 frames × 45 ms = 0.135 seconds.

As described above, upon completion of ID registration on the transmitting device side, for example, on the camcorder side, it is determined whether or not the ID code 19 transmitted from the commander side matches the registered ID, and other command codes are determined. 17 and the category code 18 are opened, and the operation intended by the user is performed.

The transmission data from the conventional commander is transmitted in a time-series manner so as to have a predetermined period τ as shown in FIG. 9, but the ID-added format shown in FIG. As in the conventional format as shown in FIG.
Is limited in the data amount of the ID code 19 added after.

Therefore, in this example, the ID code transmission is divided into several frames and transmitted, so that the data length of the ID code is not restricted so much.

[0038] For example 15 when transmitting the ID data with the bit, ID ₁ code 19a of each 5 bits as shown the ID in FIG. 7, ID ₂ code 19b parallel to the ID ₃ code 19c
And transmit them in chronological order.

At that time, the problem is that ID _{1 to} ID ₃
The order of the codes 19a to 19c is determined by using the category code 18. For example, if there is a category called VTR 1, 2, 3, VT
R1 and ID ₁ code 19a, VTR 2 and ID ₂ Code 1
9b,..., The order of the category code 18 and the ID code can be determined.

According to the remote control device of the present invention, by using the CPU 11 and one ID generation switch 6 to generate an ID code, the user can easily generate an ID having a large number of bits.
Code setting can be performed, and even if there are a plurality of electronic devices of the same format without an increase in hardware, it is possible to obtain a remote control that does not cause interference. Further, it is possible to obtain a remote control device having such a feature that the user can easily change even if the same ID code is present.

[0041]

According to the present invention, an ID code having a large number of bits is generated without increasing the hardware, and interference is not easily generated even when used outdoors for controlling a portable electronic device or the like. A remote control device capable of generating an ID code is obtained.

[Brief description of the drawings]

FIG. 1 is a system diagram showing one embodiment of a remote control device of the present invention.

FIG. 2 shows an I used in the remote control device of the present invention.
It is the top view and one side sectional view which show one Example of the D generation switch.

FIG. 3 is a flowchart of ID generation of the remote control device of the present invention.

FIG. 4 shows an I used in the remote control device of the present invention.
It is a format diagram of the transmission code with D.

FIG. 5 shows an I used in the remote control device of the present invention.
FIG. 9 is a diagram illustrating an example of a format of a transmission code at the time of D registration.

FIG. 6 shows an I used in the remote control device of the present invention.
FIG. 14 is a diagram illustrating another embodiment of the format of the transmission code at the time of D registration.

FIG. 7 is a transmission state diagram of a format of a code with an ID of the remote control device of the present invention.

FIG. 8 is a transmission code format of a conventional remote controller device.

FIG. 9 is a transmission state diagram of a format of a conventional remote controller device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Key matrix 2 Key scan circuit 3 Data setting circuit 6 ID generation switch 8 Switch scan circuit 7 Timer latch circuit 9 Timer 10 Memory 11 CPU

Continuation of the front page (56) References JP-A-63-26098 (JP, A) JP-A-3-137844 (JP, A) JP-A-2-98299 (JP, A) JP-A-2-260831 (JP, A) JP-A-56-114048 (JP, A) JP-A-54-69345 (JP, A) JP-A-2-43821 (JP, A) JP-A-4-222017 (JP, A) 57-114442 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04Q 9/00-9/16

Claims (4)

(57) [Claims] 1. A remote control device having information processing means configured to transmit an ID code from a remote control signal transmitting device, wherein: an ID code generating means for generating the ID code; Means for detecting the start and end of operation of the means, a timer used for counting from the start to end of the operation, a latch means for latching the end of the count, and a memory for storing the end value of the latch means as an ID value And a remote control device. 2. The method according to claim 1, wherein the counting is performed during the operation of the ID code generating means, and the count value when the operation of the ID code generating means is stopped is latched by the latch means. The remote control device according to claim 1, wherein 3. The remote control device according to claim 1, wherein the receiving device to which the ID code is transmitted from the transmitting device of the remote controller is a portable electronic device. 4. The remote control device according to claim 1, wherein said ID code generation means is constituted by a push button, and an upper surface of the push button is arranged at a position lower than a housing surface of the transmitter of the remote controller.