JPH0767189B2 - Bar code remote control device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a barcode remote control device for reading a barcode and transferring the decrypted data to a host device.

[Conventional technology]

Bar code remote control devices that read a barcode, decode the read data, create an encoded remote control data signal, and transfer the remote control data signal to a host device such as a VTR have been widely used.

FIG. 4 is a schematic configuration diagram of this type of barcode remote control device, in which the power supply of the power supply unit 23 includes a controller unit 20, a barcode read processing unit 21, and a remote control data transfer processing unit.
The controller unit 20 is connected to the barcode reading processing unit 21, the remote control data transfer processing unit 22 and the power supply unit 23, and the output terminal of the barcode reading processing unit 21 is the input terminal of the remote control data transfer processing unit 22. It is connected.

The controller unit 20 is provided with a first key SW1 for inputting a read command signal and a second key SW2 for inputting a transfer command signal. The operation of the bar code reading processor 21 and the remote controller data transfer processor 22 is controlled by the operation of the key 2 SW2, and the automatic power-off control is performed on the power supply 23.

That is, by operating the first key SW1 of the controller unit 20, the barcode reading processing unit 21 reads the barcode 25 and decodes it to create a data signal. Then, by operating the second key SW2 of the controller unit 20, the remote controller data transfer processing unit 22 is activated, and the barcode reading processing unit
The data signal is fetched from 21 and the remote control data signal is created by encoding this data signal and transferred to a host device (not shown).

FIG. 3 is a block diagram for explaining the main structure of a conventional bar code remote control device of this type.
Is provided with a read start input circuit 1, a switch 12, a transfer start input circuit 5 and a switch 16, and the first key SW1 and the second key SW2 are respectively connected to the read start input circuit 1 and the transfer start input circuit 5. It is connected. Then, the output terminal of the read start input circuit 1 is connected to the input terminal of the switch 12, the output terminal of the transfer start input circuit 5 is connected to the input terminal of the switch 16, and the control terminal t ₂₁ of the switch 12 is switched. The control terminal t ₁₂ of the device 16 is connected to each other.

In addition, the control terminal t ₀₁ of the read start input circuit 1, the control terminal t ₀₂ of the transfer start input circuit 5, the control terminal t ₁₁ of the switching device 12 and the control terminal t ₂₂ of the switching device 16 are connected to the transfer processing circuit 1 described later.
The signal line z from the processing signal terminal t _{8 of 8} is connected.

The bar code reading processing unit 21 is provided with a reading start determination circuit 13 and a reading processing circuit 14, and the above-mentioned switching unit 12
Is connected to the input terminal of the reading start judgment circuit 13, and the active terminal t of this reading start judgment circuit 13
₄₁ is connected to the control terminal t ₆ of the read processing circuit 14, and the inactive terminal t ₃₁ of the read start determination circuit 13 is connected to the signal line j.
Through, it is connected to the control terminal t ₂₁ of the switch 12 is connected to a processing signal terminal t ₅ also signal line j of the read processing circuit 14 Yotsute, to the control terminal t ₂₁ of the switch 12.

The remote control data transfer processing section 22 is provided with a transfer start judgment circuit 17 and a transfer processing circuit 18, and the active terminal t ₄₂ of the transfer start judgment circuit 17 is the control terminal t of the transfer processing circuit 18.
₁₀ , the input terminal of the transfer processing circuit 18 is connected to the output terminal of the read processing circuit 14 by the signal line d, and the processed signal terminal t ₈ of the transfer processing circuit 18 is connected by the signal line z. As described above, the remote controller data signal is connected to each unit of the controller unit 20 and the remote control data signal from the output terminal of the transfer processing circuit 18 is input to the host device (not shown).

Next, the operation of the conventional barcode remote control device having the above configuration will be described.

When the barcode is read by the barcode remote controller and the transfer of the remote controller data signal obtained by encoding the obtained data signal to the host device is completed, the transfer processing circuit
A reset signal is input to the controller section 20 from the processing signal terminal t _{8 of} 18 through the signal line z.

Due to this reset signal, the read start input circuit 1 and the transfer start input circuit 5 are activated and the first
The input states of the key SW1 and the second key SW2 are set to a state in which they can be stored.

In addition, the reset signal causes the switch 12 to switch the signal lines a and b.
Are connected to each other, and the switch 16 sets the signal lines e and f to be in a cutoff state.

In such a state, when the first key SW1 is operated to input the read command signal to the control section 20, the read start input circuit 1 causes the first key SW1 to move in the step S1 of the flowchart shown in FIG. Remember that it was operated,
The read command signal is signal line a, switch 12 and signal line b.
It is inputted to the reading start judgment circuit 13 through the above.

Next, in step S2, it is determined whether or not the first key SW1 (reading start key) has been pressed, and it is confirmed that the correct reading command signal has been input to the reading start judging circuit 13. Then, the drive signal is input from the active terminal t ₄₁ to the control terminal t ₆ of the reading processing circuit 14.

In response to this drive signal, the bar code reading processing unit 21 starts reading the bar code, and proceeds to step S3 of the flow chart in FIG. 5, where a sensor not shown in FIG. 3 detects the bar code, This detection signal is read processing circuit
It is input to 14, the detection signal is decoded to obtain a data signal, and this data signal is stored in the reading processing circuit 14.

In this way, when the barcode reading processing by the barcode reading processing unit 21 is completed, the reading processing circuit
The reset signal is input from the processing signal terminal t _{5 of} 14 to the control terminal t ₂₁ of the switch ₁₂ and the control terminal t ₁₂ of the switch 16 via the signal line j, and the switch 12 switches the signal lines a and b. They are cut off from each other, and the switch 16 connects the signal lines e and f to each other. This state is set by the reset signal input from the inactive terminal t ₃₁ through the signal line j even when the read start determination circuit 13 determines that the read command signal is inactive. .

Next, proceed to step S4 of the flow chart shown in FIG.
It is determined whether or not the key SW2 (transfer start key) is pressed, the second key SW2 is operated, and the transfer command signal from the transfer start input circuit 5 is sent to the signal line e, the switch 16 and the signal. It is determined whether or not the data is input to the transfer start determination circuit 17 through the line f.

When it is confirmed in step S4 that the transfer command signal is input to the transfer start determination circuit 17, step S5
Then, the drive signal is input from the active terminal t ₄₂ of the transfer start determination circuit 17 to the control terminal t ₁₀ of the transfer processing circuit 18.

Then, the transfer processing circuit 18 is activated by the input of the drive signal, and the read processing circuit 14 is transferred to the transfer processing circuit 18.
The above-mentioned data signal stored in is transferred, the transfer processing circuit 18 encodes the data signal by the carrier signal to create a remote control data signal, and this remote control data signal is output from the output terminal of the transfer processing circuit 18. It is transmitted to a host device (not shown).

In this way, when the transfer of the remote control data signal to the host device by the remote control data transfer processing unit 22 is completed,
The reset signal from the processing signal terminal t ₈ of the transfer processing circuit 18 is
Control terminal t of the read start input circuit 1 via the signal line z
₀₁ , the control terminal t ₀₂ of the transfer start input circuit 5, the control terminal t ₁₁ of the switching device ₁₂ and the control terminal t ₁₂ of the switching device 16, and the controller unit 20 is brought into the reset state as described above.
This state is set by the reset signal input from the inactive terminal t ₃₂ through the signal line z even when the transfer start determination circuit 17 determines that the transfer command signal is inactive. .

As described above, according to the conventional barcode remote control device, the barcode reading processing unit 21 is operated by operating the first key SW1 and the second key SW2 of the controller unit 20.
The barcode 25 is read by, and the data signal of the read barcode is created by the remote control data transfer processing unit 22 as a remote control data signal and transferred to the host device.

[Problems to be Solved by the Invention]

In the above-mentioned conventional barcode remote control device, the number of parts is reduced as much as possible in order to reduce the size of the device, and the parts used are also reduced in size as much as possible.

Therefore, small keys are used as the first key SW1 and the second key SW2, and the first and second keys SW1 and SW2 are arranged close to each other in order to reduce the occupied space. However, the bar code remote control device is not provided with an indicator lamp for displaying the operation of these keys.

Therefore, in the conventional barcode remote control device, the first and second keys SW1 and SW2 are operated as described above, and these operations are performed by the read start input circuit 1
And the transfer start input circuit 5, which are respectively stored, and this state is determined in the order of the first key SW1 for inputting the read command signal and the second key SW2 for inputting the transfer command signal, and reading and reading of the bar code. The remote control data signal generated based on the generated bar code is transferred.

As described above, in the conventional barcode remote control device in which the small first and second keys SW1 and SW2 are arranged adjacent to each other, the second key SW2 is operated after the first key SW1 is operated. I made a mistake, and I accidentally mistakenly pressed the first key SW1 and the second key S
W2 and may be operated at the same time.

When the first key SW1 and the second key SW2 are simultaneously operated, as described above, the reading start judgment circuit 13 first judges the presence or absence of the reading command signal, and the reading processing circuit 14 carries out the reading processing. So first first
There is a problem that the data signal to be stored in the reading processing circuit 14 by the operation of the key SW1 is erased before being transferred as the remote control data signal by the transfer processing circuit 18.

An object of the present invention is that even if an erroneous operation such as simultaneous operation of the first key and the second key is performed, the data signal obtained by the reading process by the already operated first key is erased. Another object is to provide a barcode remote control device in which a remote control data signal is created based on this data signal and this remote control data signal is transferred to the host device.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a first key for inputting a read command signal and a second key for inputting a transfer command signal.
And a bar code reading processing unit which is connected to the controller unit and operates by a read command signal output from the controller unit to obtain a data signal by reading a bar code, and is connected to the controller unit. Then, it operates by the transfer command signal output from the controller section, takes in the data signal from the bar code reading processing section, encodes the data signal to create a remote control data signal, and the remote control data signal is used by the host device. A bar code remote control device having a remote control data transfer processing unit for transferring to a reading circuit, a gate circuit opened after the completion of the processing in the remote control data transfer processing unit and for inputting the read command signal to the reading processing unit. It is characterized by being provided.

[Action]

Opened after the remote control data transfer processing section completes processing,
Since the gate circuit for inputting the reading command signal to the reading processing unit is provided, when the barcode reading processing is completed by the barcode reading processing unit by the operation of the first key, the above gate circuit operates. When it is closed, the input of the read command signal to the read processing unit is blocked.

Therefore, even if the first key and the second key are simultaneously operated next, the transfer command signal by the operation of the second key is only input to the remote controller data transfer processing unit, and the read command signal is transmitted. The data signal of the previous time is not erased by inputting to the reading processing unit.

Therefore, the remote control data transfer processing unit is activated by the transfer command signal, the data signal is taken in from the reading processing unit, a remote control data signal is created based on this data signal, and this remote control data signal is transferred to the host device. It

Since the above-mentioned gate circuit is opened for the first time after the completion of the processing in the remote control data transfer processing unit, the host device of the accurate remote control data signal does not always erase the data signal obtained in the bar code reading processing unit. Transfer to.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of a main part of a bar code remote controller for explaining an embodiment of the present invention, and FIG. 2 is a flow chart showing an operation of the embodiment of the present invention.

As shown in FIG. 1, in this embodiment, in comparison with the conventional bar code remote controller already described with reference to FIG.
The control terminal t ₁₁ of the switching device 12 and the control terminal t ₂₂ of the switching device 16 are connected to each other, and the inactive terminal t of the transfer start judging circuit 17 is connected.
₃₂ and the processing signal terminal t ₈ of the transfer processing circuit 18 are connected to the control terminal t ₂₂ of the switch 16 by a signal line j. The inactive terminal t ₃₁ of the reading start determination circuit 13 and the processing signal terminal t ₅ of the reading processing circuit 14 are connected to the control terminal t ₀₁ of the reading start input circuit 1 and the switch 1 by the signal line z.
2 is connected to the control terminal t ₂₁ , the control terminal t ₀₂ of the transfer start input circuit 5, and the control terminal t ₁₂ of the switch 16.

In this way, in this embodiment, when the reading command signal is judged to be inactive in the reading start judgment circuit 13 or the bar code reading processing in the reading processing circuit 14 is completed, the switch 12 is operated. Signal line
The a and b are cut off from each other, and the switch 12 connects the signal lines e and f to each other.

Further, in this embodiment, when the transfer start determination circuit 17 determines that the transfer command signal is inactive, or when the transfer processing circuit 18 completes the transfer of the remote control data signal, the switching device 12 sends a signal. The lines a and b are connected to each other, and the switch 16 blocks the signal lines e and f from each other.

The configuration of the other parts in FIG. 1 is the same as that of the conventional bar code remote controller described with reference to FIG.

In the above configuration, the switch 12 constitutes a gate circuit.

Next, the operation of the above configuration will be described.

In the state where the transfer of the remote control data signal is completed, the switching device 12 connects the signal lines a and b to each other and the switching device 16 connects the signal line e by the reset signal from the processing signal terminal t ₈ of the transfer processing circuit 18. , f are cut off from each other.

When the first key SW1 and the second key SW2 are operated from this reset state, the first key is input to the reading start input circuit 1 and the transfer start input circuit 5 in step S1 of the flow chart of FIG. The operation states of SW1 and the second key SW2 are stored.

Then, in step S2 of FIG. 2, it is determined whether or not the second key (transfer start key) is pressed. However, at this time, since the signal lines e and f are cut off from each other by the switch 16, the transfer start determination circuit 17 is
The operation of key SW2 on the
It is determined whether or not the key (transfer start key) is pressed.

At this time, since the signal lines a and b are connected to each other by the switch 12, the read command signal is input to the read start determination circuit 13, and the process proceeds to the flow chart S4 in FIG. 2 to determine the read start. The bar code is read by the reading processing circuit 14 by the drive signal from the active terminal t ₄₁ of the circuit 13, and the data signal is created and stored.

Then, the reset signal from the processing signal terminal t ₅ of the read processing circuit 14 is input to the control terminal t ₂₁ of the switch ₁₂ and the control terminal t ₁₂ of the switch 16.

With this reset signal, the switch 12 cuts off the signal lines a and b from each other and the switch 16 connects the signal lines e and f to each other, so that the transfer command signal is input to the transfer start determination circuit 17, Step 2 from the flow chart step S4 again.
S1, the process proceeds to step S5 via step S2, Yotsute on a drive signal from Akuteibu terminal t ₄₂ of the transfer start judging circuit 17, the transfer processing circuit 18 starts to operate. Transfer processing circuit 18
In response to the above operation, a data signal is taken in from the reading processing circuit 14, a remote control data signal is created based on this data signal, and this remote control data signal is transmitted from the transfer processing circuit 18 to a host device (not shown).

According to the present invention, after the first key SW1 is operated, the first key SW1 and the second key SW2 are operated in an attempt to operate the second key SW2.
Even when the keys SW2 of 2 are simultaneously operated, the data signal read and processed by the first operation of the first key SW1 is not erased and is transferred by the remote controller data transfer processing unit 22.

That is, when the reading processing circuit 14 performs the reading processing of the bar code by the first operation of the first key SW1,
As described above, with the reset signal from the processing signal terminal t ₅ ,
The switch 12 cuts off the signal lines a and b from each other, and the switch 16 connects the signal lines e and f to each other.

For this reason, in such a case, in the flow chart of FIG. 2, the process proceeds from step S1 to step S2, and the transfer start judgment circuit 17 detects the transfer command signal from the controller section 20. Proceeding to step S5, the transfer processing circuit 18 performs the reading processing by the first operation of the first key SW1, the data signal stored in the reading processing circuit 14 is taken in, and it is created based on this data signal. The remote control data signal is transferred to the host device.

Thus, according to the embodiment of the present invention, the first key SW1
The data signal of the bar code read and processed by the first operation of is not erased even if the second key SW2 and the first key SW1 are operated at the same time by mistake in the next operation. The generated data signal is transferred from the remote controller data transfer processing unit 22 to the host device.

For this reason, since the malfunction due to the operation of the first and second keys SW1 and SW2 does not occur, the operation is simple and quick,
It is possible to reduce the size of the operation surface.

〔The invention's effect〕

As described above, according to the present invention, it is possible to prevent a malfunction due to a key operation, simplify the operation, improve the speed of the operation, and reduce the size of the entire barcode remote control device. You can do it.

[Brief description of drawings]

FIG. 1 is a block diagram showing the essential configuration of an embodiment of the present invention, FIG. 2 is a flow chart for explaining the operation of the embodiment shown in FIG. 1, and FIG. 3 is a conventional bar code remote controller. FIG. 4 is a block diagram showing the configuration, FIG. 4 is a block diagram showing the overall configuration of the barcode remote control device, and FIG. 5 is a flow chart for explaining the operation of the conventional barcode remote control device. 1 ... Reading start input circuit, 5 ... Transfer start input circuit, 12,16 ... Switch, 13 ... Reading start judgment circuit, 1
4 ... Read processing circuit, 17 ... Transfer start determination circuit, 18
...... Transfer processing circuit, 20 ...... Controller section, 21 ...... Bar code reading processing section, 22 ...... Remote control data transfer processing section.

Claims (1)

[Claims] 1. A controller unit having at least a first key for inputting a read command signal and a second key for inputting a transfer command signal; and a controller unit connected to the controller unit,
It operates by a read command signal output from the controller unit, and a bar code reading processing unit that decodes a bar code to obtain a data signal and a transfer command signal output from the controller unit, which is connected to the controller unit. Then, the bar code remote controller has a remote control data transfer processing unit that takes in the data signal from the bar code reading processing unit, encodes the data signal to create a remote control data signal, and transfers the remote control data signal to the host device. In the apparatus, a bar code remote controller is provided with a gate circuit, which is opened after completion of processing in the remote controller data transfer processing section, and allows the controller section to input the read command signal to the reading processing section. apparatus.