JPS61166297A - Remote control signal generator - Google Patents

Abstract

PURPOSE:To attain ease of observation and operation by providing independently an operating section of a remote controller controlling remotely plural electronic devices at each electronic device separately and displaying each function singly to eliminate the need for operation of a switch changed over at each electronic device. CONSTITUTION:All bits fetched from an input setting section 7 in a buffer memory 3 are confirmed by the rising of a write pulse f1. Then a request output l5 of ROM data is outputted from the buffer memory 3 in response to a switch bit. A control section 5 receiving the request output l5 reads ROM data c0-c4 (c0-c3 correspond to data codes and c4 corresponds to a device bit) from an address designated by address designation outputs e0-e3 and uses write pulses f0, f1 to write the data on the buffer memory 3. Then the switch bit b5 in the buffer memory 3 is unchanged. Then the content of the buffer memory 3 is read sequentially by a read pulse (g) outputted from a converting section 4, converted into a prescribed output pulse and outputted. The output (i) of the converting section 4 is shown in a figure.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a remote control signal generating device that generates a transmission signal for a remote control device or the like used for remote control of a plurality of electronic devices.

Prior Art 2 Beno's conventional remote control signal generator had a configuration as shown in FIG. In FIG. 4, the circular symbol indicates a key switch that is normally on and turns on when operated. The changeover switch S0 is used to switch which device is to be controlled when remotely controlling two electronic devices. Now, the key switches aO to a15 are connected to the matrix formed by the key scan output section 2 and the key power section 1, and a predetermined function is assigned to each of them, so that when the switch S0 is off, the TV is turned on, and when the switch S0 is on, the video deck is turned on. The first example of remote control is
Shown in the table. The data code in Table 1 is key N switch a
It corresponds to 16 switches from 0 to "15" and has a 4-bit configuration.When the switch S0 is off and the TV is operated, it is "0", and when the switch S0 is on and the video deck is operated, it is "1". One bit of the device pit corresponding to the device is empty, and this is used as the MSB to write 5 bits of data in the balancer memory 3 together with the 4 bits mentioned above. One pit is sequentially read out from the buffer memory 3 into a converter 4, converted into a serial pulse, and output as a remote control signal. FIG. 6 shows an example of a remote control signal for reducing the volume of the television. Fifth
In the figure, the output is from the LSB first. In a remote control device with such a conventional configuration that can control the TV and video deck with one unit, the switch SO is composed of a slide switch, etc., and the panel that displays the functions of key switches a0 to a9 requires two types of displays. FIG. 6 shows a conventional example of such a panel. In FIG. 6, the function 11 shown at the top of each key switch 1° is for television, and the function 12 shown at the bottom is for video, and these are switched by a slide switch 13.

Problems to be Solved by the Invention In such a conventional configuration, different functions are displayed on one key switch, which is complicated, and the slide switch 13 has to be switched on either side of the TV or the VCR. There was an inconvenience that if you operated without checking, you could increase the volume of the TV, but if you operated it without checking, the video deck would start playing.

5 to 1 The present invention solves these inconveniences, and provides a remote control signal generator for realizing an inexpensive remote control device in which the panel display of the operation switch is easy to see, there is no need to check slide switches, etc. This is what we provide.

Means for Solving the Problem In order to solve this problem, the remote control signal generating device according to the present invention includes a buffer memory into which input data fetched from an input setting section is written, and a read-only memory (addressed by the buffer memory). (hereinafter referred to as ROM) and the ROM by direct input set in the input setting section or by input obtained via the buffer memory: F
It has a control section that reads out tOM data and writes it into the buffer memory at the same time, and a conversion section that reads out the contents of the balancer memory and converts it into a serial pulse train.

Function: With this configuration, the ROM is
By writing arbitrary data in advance to 6, it is possible to obtain an arbitrary output, and it is also possible to output data determined by a conventional key matrix.

Embodiment FIG. 1 is a block diagram showing a remote control signal generator according to an embodiment of the present invention. In Fig. 1, the input setting section 7
The circular symbol is normally on for key switches a0 to a15, but turns on when operated.Secret switch, selector switch S0. Sl is an on/off switch connected in series with a diode. FIG. 2 is a timing chart showing the operation when the key switch a0 and changeover switch S1 in FIG. 1 are on.

The key scan output section 2 sequentially outputs key scan pulses 5°-j4 according to the clock.

Since the key switch a0 is now on, there is an input synchronized with the key scan pulse j□ to the input line 0. At this time, the data code is b. -b3 is determined. Therefore, the data code is undefined at the timing of key scan pulses 51-54.

On the other hand, since the selector switch S1 is on, the input line
Key scan pulse 14Kn for Karakey human power department 1.

There is an expected previous input, and at this time the device bit b4 and switching bit b5 are determined. Therefore, key scan pulse 10
At the timing of ~j3, the device bit b4 and the switching bit b5 are undefined. In the control unit 5, the data code b ~
b2 equipment bit b4. Pass line d at the timing when each switching pit b5 is determined.

-d5, and at the same time output write pulses f0 and fl for writing into the buffer memory 3, write the data code at the rising edge of write pulse f○, and write the device bit and switching bit at the rising edge of fl.

Data code b from buffer memory 3. - Address specification output e according to b3. In order to output ~e3, the address specification is a write pulse f. Confirm at startup.

Therefore, in the buffer memory 3, all the pits (data code b0 to b3 t equipment bit b) taken in from the input setting section
4. The switching bit b5) is determined at the rising edge of the write pulse f1. Next, a request output 15 of ROM data is outputted from the buffer memory 3 in accordance with the switching bit. Request output 1
! 5, the control unit 6 outputs the address designation e. ROM data cO” '4 (
Of these, 'O-c3 corresponds to the data code and c4 corresponds to the device bit) is read out and simultaneously written into the buffer memory 3 by write pulses f0 and fl. Therefore, the switching bit b6 in the balancer memory 3 does not particularly change.

Thereafter, the contents are sequentially read out from the buffer memory 3 using the read pulse q output from the converter 4, converted into a predetermined output pulse, and output. The output i of the converter 4 is shown in FIG. 6, for example.

Here, if the changeover switch S1 is off, the requested output 15 is not output from the buffer memory 3, and therefore the control unit 5
Since the contents of ROMe are not read out and written to the buffer memory 3, the input setting section 7 is stored in the buffer memory 3.
Data code b imported from. -b3 and equipment bit b
It is clear that the output i of the converting section 4 is based on the data code and device bit produced by the operated key switch.

Data obtained for key switches a0 to ``15'' 9- Assign functions to the data code and each data code using TV and video deck as an example, and select the function from each function by key switch a to a15. Figure 3 shows the operation panel of a remote control device that uses the ROM data according to Table 2.According to the present invention, the operation key switches can be separated depending on the device. It can be made independent, and no changeover switch is required.Therefore, if the function display for each key switch is provided separately and independently, and the function display is made independent, it is possible to realize a remote control device that does not require any operation. Since a remote control device for electronic equipment can also be realized, the range of use of the remote control signal generator according to the present invention is wide without being limited by ROM data.

Therefore, through standardization through means such as integrated circuits, it is possible to provide products at low cost through mass production.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a remote control signal generator according to an embodiment of the present invention, FIG. 2 is an operation timing diagram of FIG. 1, and FIG. 3 is a remote control realized by the remote control signal generator according to the present invention. FIG. 4 is a block diagram of a conventional remote control signal generator; FIG. 5 is an output waveform diagram showing an example of a remote control signal;
FIG. 6 is a front view showing the operation panel section of a conventional remote control device. 1... Key human power section, 2... Key scan output section, 3... Buffer memory, 4...
...Conversion section, 5...Control section, 6...R
OM. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure clock ``1-cho-UL-m------------
−−−−−−−−−−−−Iccho−F−“−Fig. 3

Claims (1)

[Claims] a buffer memory into which input data fetched from the input setting section is written; a read-only memory whose address is specified by the buffer memory; A remote control signal generating device comprising: a control unit that reads read-only memory data from a dedicated memory and writes it into the buffer memory at the same time; and a conversion unit that reads the contents of the buffer memory and converts it into a serial pulse train.