JPH03102449A - Data transfer device - Google Patents

Abstract

PURPOSE:To simplify a state check process by deciding the state result set to an electronic equipment based on the answer contents set to the state detecting signal of a slave equipment designated by a control signal and storing the result of decision. CONSTITUTION:A slave equipment 1b transfers and receives data to and from an electronic equipment. A master equipment 1a applies a state detecting signal set to the electronic equipment to the equipment 1b designated by a control signal, decides the state result set to the electronic equipment based on the answer contents set to the state detecting signal of the equipment 1b designated by the control signal, and stores the result of decision. Thus plural equipments 1b are connected in series to the equipment 1a connected with the input/output terminals like a printer, a tape recorder, etc. Then the equipments 1b are successively designated by the clock signals received from the equipment 1a, and at the same time the connection state of the pocket computer of each equipment 1b can be checked by a data link confirmation command. As a result, a fixed number of control lines can be kept regardless of the number of equipments 1b. Then the constitution of a data transfer device is simplified and the state check process is also simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a data transfer device for inputting and outputting data to and from a plurality of electronic devices.

[Conventional technology and its problems]

Recently, as a small electronic device, for example, a pocket computer (hereinafter abbreviated as a pocket computer) has been used in various fields.

It does not have anything related to output terminals.

For this reason, it has been considered up to now to prepare separate human output terminals and use a data transfer device to input and output data between these human output terminals and pocket computers.

However, the conventionally used data transfer devices have the disadvantage that data transfer efficiency is extremely poor because the number of compatible pocket computers is limited to 1-1.

Therefore, a conventional approach has been to connect multiple data transfer units, which correspond to slave units, to the main unit of the device in parallel, and to enable these slave unit data transfer units to input and output data to and from the pocket computer. .

However, if you do this, if there are a large number of data transfer units corresponding to slave units, and if you want to centrally manage the status of these slave unit data transfer units on the device itself, you will have to manage the status of each slave unit data transfer unit The state is detected by specifying an address and reading its state using software, or by specifying a data transfer unit via a control line. Therefore, in the former case, the status of the data transfer unit is checked using software, which makes the process complicated and time-consuming. Furthermore, in the latter case, as the number of data converters increases, the number of address control lines increases dramatically, resulting in an increase in the cost of the entire device.

[Purpose of the invention]

This invention has been made in view of the above circumstances, and an object of the present invention is to provide a data transfer device that can simplify processing for status checking, has a simple overall configuration, and can be inexpensive. do.

[Key points of the invention]

A data transfer device according to the present invention includes a handset having a data transmitting/receiving means for transmitting and receiving data to and from an electronic device;
one or more of the slave units are connected in series, and signal generating means outputs a control signal specifying the slave unit and provides a status detection signal for the electronic device to the slave unit designated by the control signal; A control means for determining the status result for the electronic device from the response content to the status detection signal in the handset specified by the control signal, and t' in the control means.
The main unit has a storage means for storing the L1 disconnection results.

[Embodiments of the invention]

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

Figure 1-1 shows an external view of the entire device.

In the figure, 1 is a data transfer device main body, and this device main body 1 has multiple slave devices 1 from #1 to #work for a base device 1a.
b are connected in series.

The base device 1a is provided with an infrared data transmitting/receiving section 2 on its side edge, and is configured to transmit and receive data to and from an electronic device, such as a digital camera 3, in a non-contact manner. Also, relatives aft:
la is connected to a telephone coupler 4, a printer 5, and a table recorder 6 as data input/output terminals.

On the other hand, the handset 1b also has an infrared data transmitting/receiving section 7 on the side edge.
is provided, so that data can be transmitted and received to and from the blurring computer 3 without contact.

Next, FIG. 2 shows the circuit configuration of such a base unit a.

In the figure, reference numeral 2 denotes the above-mentioned infrared data transmitting/receiving section, which has an infrared data receiving LED 2a and an infrared data transmitting/receiving LED 2b. LED for infrared data reception
The data received at 2a is sent to the amplifier section 8, amplified, and sent to the demodulation section 9. The demodulator 9 supplies the demodulated data to one terminal of the data selector 10 . The data selection section 10 is also given data received from the connector to which the handset 1b is connected. Here, the data selection section 10 can appropriately select data transmission/reception data for the data transmission/reception section 2 and data transmission/reception 5 transmission data for the connector-1 based on a control signal from a control section 14 to be described later. Then, the output of the data selection section 10 is given to the serial/parallel conversion section 12. Here, the serial/parallel converter 2 converts serial data into parallel data, and supplies this parallel data to the controller 14.

The control section 14 receives data from the serial/parallel conversion section 12. When the data is received, the I/
A control command is given to the F control section 15.

The I/F control section 15 gives an enable to any of the I/F control sections 16, 1.7, and 18 in response to a control command from the control section]4.

In this state, data and control signals are sent to the I/F control sections 16, 17, 18 selected by the I/F selection section 1-5. Here, the I/F control unit 1-6 includes a telephone coupler or modem 1/F 19, and an I/F control unit 17.
1/F20 for the printer, and a tape for the I/F control section 18.
1/F21 for precoder is connected respectively.

On the other hand, data returned via each I/F 19.20, 2 is sent to the control section 14 from the respective I/F control sections 16, 17.18.

The control unit 14 uses the data from the I/F control units 1.6, 1.7.18 as transmission data to the serial/parallel conversion unit 1.
2, and the output of this converter 12 is further provided to the data selector]0. The data selection section 10 then outputs the data supplied from the serial/parallel conversion section 12 to the modulation section 22 or the connector 11 in accordance with the control signal from the control section 14. The modulator 22 modulates the output of the serial/parallel converter 22 provided via the data selector 1 - 0 and supplies it to the LED driver 23 . Then, the LED driver 23 drives the transmitting LED 2b of the data transmitting/receiving section 2, and transmits data made of infrared rays.

The control unit 14 provides a control signal to the state detection unit 24 and also provides a connection check command. The state detection unit 24 provides a set signal SRD, a clock signal SRCKI, and a reset signal CLI to the slave unit 1b via the connector 11, and also receives a check end signal SRTNO from the slave unit 1b side.

This check completion signal SRTNO is also given to the control section 24. Further, the control section 14 sends a connection check/sock command to one terminal of the AND gate 25. this ant gate 2
5 is given status data from the handset 1b side via the connector 1]. The output of the AND game 1.25 is given to the connection state storage section 26. The address of the connection state storage section 26 is controlled by an address counter 27. The address counter 27 is supplied with the cross/separate signal S R C K I from the state detection section 24 and the address command from the control section 14 . And this address counter 27
The data in the storage unit 26 or the control unit 14 according to the contents of 1j
available.

Next, FIG. 3 shows a circuit arrangement of a slave unit 1b connected to such a base unit 1-a.

In the figure, 31 is a human connection terminal that is connected to the connector 11- of the base unit 1a (or the connection terminal of the first-stage slave unit 1-b), and 32 is an output-side connection terminal that is connected to the second-stage slave unit 1b. It is. Among these, the connection terminal 3] is the control terminal SRD to which the set 1 signal SRD is applied, and the clock terminal S
RCKI, clear terminal CL I, check end signal terminal SRTNO, transmission data terminal SD1, reception data terminal RD, and the connection terminal 32 is also connected to the control terminal SRQ.
, clock terminal SRCKO, clear terminal CLO, check end signal terminal SRTNI, transmission data terminal S1, .
It has a reception data terminal RD. Then, the output of the control terminal SRD is applied to the set terminal D of the D-type flip-flop 33, and the clock signal of the clock terminal SRCKI is directly applied to the clock terminal SRCKO of the connection terminal 32. A clear signal from the clear terminal CLI is given directly to the clear terminal CLO of the connection terminal 32, and
It is applied to the clear terminal CL of the flip-flop 33. Connection terminal 3] is given a check end signal from the subsequent stage Senki]b to check end terminal im number SRTNO via check end signal terminal SRTNI of connection terminal 32. Further, the transmission data of the transmission data terminal SD is directly applied to the transmission data terminal SD of the connection terminal 32 and also applied to one terminal of the AND gate 34 . The flip-flop 33 applies the output of the Q terminal to the control terminal SRQ of the connection terminal 32, the other terminal of the AND gate 1 and 34, and one terminal of the AND gate 35, and sends the output of the Q terminal to one terminal of the AND gate 36. give. The AND gate 35 has the other input terminal supplied with the output of the demodulator 39, which will be described later, and the AND gates 1 and 36 have the other input terminal connected to the subsequent slave device 1 via the reception data terminal R1 of the connection terminal 32.
- Received data from b is given. The outputs of these AND game 1-35 and 36 are applied to the reception data terminal RD via the OR game 1 and 37.

On the other hand, 7 is the above-mentioned infrared data transmitting and receiving unit, which includes an infrared data receiving LED 7a and an infrared data transmitting LED.
7b. And an LED for receiving infrared data
The data received at 7a is sent to the demodulator 3 via the narrow width section 38.
Here, it is de-10-toned and applied to the AND gate 35. Further, the output of the AND gate 34 is applied to a modulation section 40, where it is demodulated and applied to an LED driver 41. Then, the LED driver 41 causes the data transmitter/receiver 7 to use the transmitting L.
The ED7b is driven, and transmission data consisting of infrared rays is output.

A plurality of slave units]b configured in this manner are connected in series as shown in FIG. Check end signal terminal 3 R T N 1 is short-circuited.

Next, the operation of the embodiment configured as described above will be explained.

In the data transfer apparatus shown in FIG. 1, it is assumed that output terminals such as a telephone cover 4, a printer 5, and a tape recorder 6 are connected to a base unit 1a.

Next, the pocket computers 3 are set for the base device 1a and each child device 1b. In this case, the pocket computer 3 is configured to respond to the data transmitting/receiving section 2 of the base unit 1a and the data transmitting/receiving section 2 of each slave unit 1b in a non-contact manner.

To briefly describe the transmission and reception of data between the Pocket Computer 3 and the input/output terminals via the base unit ]-a and each slave unit 1b in this state, the base unit 1a performs polling, that is, sends a data link establishment command rsNRMJ( Set Norma
lResponse Mode). Then, the voice control unit 3 corresponding to the base unit 1a judges whether there is a call from SNRMJ and disconnects the call itself.
knowlcgcmcnL). The base unit 1a waits for this rUAJ and determines whether there is a response. In this case, when it is determined that there is a response, the Pocket Computer 3 sends and receives data for each device code, while the base unit 1a sends and receives data for each device code, controls the device, and outputs data to the device. . Transmission and reception of data for each device code in the blurring controller 3 continues until it is determined that the data transmission and reception processing is completed.

In this case, data reception processing on all base units 1a is performed using the reception LED.
When data is given to 2a, it is amplified by the amplifier 8, demodulated by the demodulator 9, and then sent to the data selector 1.
0 to the serial/parallel converter]2. Then, the control unit 14 receives the data from the serial/parallel converter 12. Upon receiving the data, the control section 14 gives a control command to the 1/F control section 15 . Then, in response to a control command from the control unit 14, the I/F control unit]5 enables the I/F control units 16, 17, and 18.
given to either. And in this state, I/F
The I/F control units 16, 17. selected by the selection unit 15.
Data and control signals are sent to 18. Here, the power/F control unit 16 includes a telephone coupler or a 1/F for modem.
19, 1/F control unit] 7 has 1/F20, I for printer
A tape recorder 1/F 21 is connected to each of the /F control units 18 . On the other hand, data returned via each 1/F 19, 20.21 is transmitted to each I/F control unit 16, 1.
7.18, it is sent to the control unit 1.4. Then, the control unit 14 supplies the data from the I/F control unit 16.1718 to the serial/parallel converter 12 as transmission data, converts it into a serial signal, and sends it to the modulation unit 22 via the data selection unit]O. Given. The modulator 22 modulates the output of the serial/parallel converter 22 and supplies it to the LED driver 23 . As a result, L
The ED driver 23 outputs the transmitting LED of the data transmitting/receiving section 2.
2b is driven, and transmission data consisting of infrared rays is outputted to the blurring controller 3, and data exchange is executed. after that,
When the data transmission/reception process is completed, Bokecon 3
Request for termination of data link rR DJ (Requests
t Disconnect) is sent to the main unit]
Data processing at a continues until "RD" is received. When it is determined that the interlocking process has ended, it sends a data link termination request "DISC" (Disconnect). When Bokecon 3 confirms the incoming call of rD I S CJ, it responds with r U A J ( Lln
numberAckowledgemCnt) and terminates the process.

When the data transmission and reception between the base unit 1a and the corresponding Pocket Computer 3 is completed in this manner, 1 4 performs a similar operation regarding data transmission and reception between the #1 handset 1b and the Pocket Computer 3. (In this case, base unit 1
#1 immediately when there is no rUAJ response from the pocket computer 1b to the data link establishment command rSNRMJ at a.
Data transmission and reception between the handset 1-b and the corresponding pocket computer 3 begins. ) Thereafter, data transmission and reception with the corresponding Bokehcon 3 is executed for all handsets 1b in the same manner.

Next, a case will be described in which the connection state of the remote controller 3 connected to the base unit a and each of the slave units 1b is checked.

In this case, the data selection section 10 is urged toward the connector 11 side, and the control section 14 gives a control signal and a connection check command to the condition detection section 24 . Then, first, in step AI shown in the flowchart of FIG.
15 sent out to the side. As a result, all the flip-flops 33 of each handset 1b are cleared and set to the initial state.

Next, in step A2, the state detection section 24 outputs the set signal SRD. This set signal SR
D is applied as rHJ power to the set terminal D of the flip-flop 33 of the handset lb via the control terminal SRD. Thereafter, the process proceeds to step A3, where the state detection section 24 outputs the clock signal SRCK I. Then #1
The flip-flop 33 in the Senki 1b is set, and the rHJ output is generated from the Q terminal. Then, the process proceeds to step A4, and the set signal SRD is returned to rLJ.

In this state, the process advances to step A5. In step A5, a data link establishment command rsNRMj is sent from the control unit 1-4 of the base unit 1-a to the slave unit 1b. Then, in this case, #]-In the slave device 1b, the Q of the flip-flop 33 is
Since the output state of the terminal is rHJ, this command is sent to the modulation section 40 via the AND gate 34. After being modulated by the modulation section 40, the signal is sent to the pocket computer 3 by the LED driver 41 via the transmitting LED 7b.

In this state, in step A6, it is determined whether there is a response from the pocket computer 3. Here, if there is a response from the Pocket Computer 3, a data link is established, and the response signal rUAJ is sent from the receiving LED 7a to the three demodulators via the amplifier 38, where it is demodulated and the AND gate 35,
From the data reception terminal RD via the OR gate 37 to the main unit l
It will now be sent to side a. This response signal rUAJ is applied from the connector 11 of the base unit 1a to the connection state storage section 26 through the AND gate 25. In this case, the connection state storage section 26 receives the first clock signal S from the state detection section 24.
R C I (Address counter 27 given I
A predetermined address is specified by step A7.
response signal r from #1 slave unit] b to the specified address in
UAJ is stored as a connection flag "1". Then,
The link is released in step A8, and step A9
Step 17 proceeds, and the presence or absence of the check end signal SRTNO is determined. In this case, since the connection state to the #1 handset lb is checked, the check end signal S_RTNO remains rLJ, and the process returns to step A3.

On the other hand, if it is determined in step A6 that there is no response from the pocket computer 3, the process immediately proceeds to step A9, where it is determined whether or not there is a check end signal SRTNO. In this case, the connection flag regarding the #1 handset 1b in the connection state storage unit 26 remains at "0".

When the operation returns from step A9 to step A3, the state detection section 24 outputs the clock signal SRCKI again. Then, at this point, the flip-flop 33 in the #1 handset 1b is in the set state, and the output state of the Q terminal is rHJ, so the flip-flop 33 in the #2 handset 1b is in the set state, "H" output is generated from the Q terminal. Then, the process proceeds to step A4, where the set signal SRD is returned to rLJ, and in step A5, the data link establishment command 18 "sNRMJ is sent to the #2 handset 1b via the handset 1b" from the control unit 14 of the base unit 1a. In this case, in #2 handset]b, the output state of the Q terminal of the flip-flop 33 is rHJ, so this command is sent to the modulator 40 via the AND gate 34, and is output by the LED driver 41. From (.4 JTJ L E
It is sent to the Bokekon 3 side via D7b. Then, in step A6, the presence or absence of a response from the pocket computer 3 is analyzed. Here, assuming that there is a response from the Pocket Computer 3, the response signal "UA" is given to the connection state storage unit 26 of the base unit 1a via the AND gate 36 and OR gate 37 of the #1 handset 1b, and the address counter The response signal r from #2 slave unit lb is sent to the address specified by 27.
UAJ is stored as a connection flag "1", and on the other hand, if there is no response from the pocket computer 3, the connection flag regarding #2 handset 1b in the connection state storage unit 26 remains rOJ.
Ru.

Thereafter, the operations of steps A3 to A9 are repeated in the same manner, and the connection status up to #n handset 1b is checked. Then, after checking the connection status of 19 up to #n handset 1b, at this point 4-t
#n The output state of the Q terminal of the flip-flop 33 of the T-machine 1b is rHJ, and rHJ is given as the check end signal to the check end signal terminal S R T N I of the connection terminal 32, so this signal is # The signals from n to #1 are sent to the base unit 1a side via the slave unit 1b in order, and provided to the control unit 14. From this, in step A9, it is determined whether the check end signal SRTNO is rHJ,
Connection status check ends.

Therefore, in this way, multiple slave units can be connected in series to a base unit to which an input/output terminal such as a printer or TV recorder is connected, and each slave unit can be designated in turn by the clock signal from the base unit. Since it is now possible to check the connection status of the Pocket Computer on each handset using the data link confirmation command, processing is simpler compared to the conventional status check that is read by software, and the conventional control line for specifying an address can be used. Since the number of control lines can be kept to a constant number regardless of the number of handsets, the overall structure of the 20 device can be simplified and the price can be reduced. In addition, the status check results for each slave unit are stored in the storage unit, so when transmitting and receiving data to and from input/output terminals such as printers and tape recorders, you can refer to the contents of the storage unit to check the status of the connectable units. The machine can be easily instructed and data can be sent and received efficiently.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be implemented with appropriate modifications without changing the gist.

For example, although the data transmission/reception section using infrared rays has been described above, it is also possible to employ a data transmission/reception section using other means.

〔Effect of the invention〕

According to the present invention, the processing for checking the status can be simplified, and the overall configuration of the device is simple, making it inexpensive in terms of cost.

[Brief explanation of drawings]

FIG. 1 is an external view showing the entire device of an embodiment of the present invention;
FIG. 2 is a block diagram showing the circuit configuration of the base unit of the same embodiment;
FIG. 3 is a block diagram showing the configuration of the circuit 21 of the handset of the same embodiment, FIG. 4 is a diagram for explaining the connection state of the handset of the same embodiment, and FIG. 5 is an explanation of the operation of the same embodiment. This is a flowchart for 1...Device main unit, 1a...Main unit, 1b...Slave unit, 2
7...Data transmission/reception unit, 3...Pocket computer, 4...Telephone coupler, 5...Printer, 6...Transistor,
24...Status detection unit, 26...Connection status storage unit, 27
...address counter, 31.32...connection terminal,
33...Flip-flop, 34.35.36...Andget.

Claims (1)

[Claims] A handset having a data transmitting/receiving means for transmitting and receiving data to and from an electronic device, and one or more handsets connected in series, and outputting a control signal specifying the handset, and a control signal designated by the control signal. Signal generating means for supplying a status detection signal for the electronic device to a slave device; control means for determining a status result for the electronic device from the response content to the status detection signal in the slave device designated by the control signal; and the control means. 1. A data transfer device comprising: a base device having storage means for storing the determination result of the data transfer device.