JPS62268300A - Remote controller - Google Patents

Abstract

PURPOSE:To symplify an equipment in a television receiver by providing a control means which controls a pulse generation means generating a pulse train corresponding mode to the counting result of an storage area concerned and a control means which controls these actions and executes said counting action, etc., by means of operating an input means. CONSTITUTION:A rewritabel memory (RAM)23 is the one which stores a control signal from a photodetector 15 for a while. Timers 28 and 30 are used to count the pulse's own leading time of a detector 27 and the time interval between pulses and also to count the time interval between pulses from the data of a RAM 24. A key encoder 29 converts the signals of a call key string 8 for a preset channel matrix-constituted,a sound volume increase key 9, a sound volume decrease key 10, a power source switch ON/OFF key 11 and a memory key 13 into a binary code and operates so as to transfer it to a central processing unit (CPU) 40.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a remote control device that can control any remotely controlled device, such as a television receiver or a so-called video recorder, with a single installation.

In prior art television receivers, video tape recorders, audio equipment, etc., each remote control transmitter (t j
However, since each remotely controlled device is installed in close proximity to each other, the remote control bow type is required to prevent interference between each remotely controlled device. 1. It is commonly done to have a difference. That is, for general remote 111j use (,t,H
is composed of a binary code with a specific focus number n, and this data is converted into a pulse position change W,'8 (abbreviated as P P M) wave or pulse, which is intermittent with a carrier wave of 38 kHz/40 kllz. [1] Modulated (PWM) wave,
It is often transmitted by infrared rays in the form of serial data.

Also, regarding the remote control device or remote control signal,
Since similar transmission methods are used, in order to prevent unintended remote controlled devices from responding by mistake, specific restrictions are set in advance on the number of bits or on the data structure method within the same number of bins. It is designed to prevent false responses.

(If you want to, control multiple remotely controlled devices at will.)
In this case, different types of remote control transmitters d1 were separately manufactured for each remote controlled device.

In addition, transmitters with different configurations can be combined into one unit, and the data configuration can be switched manually or automatically for each remotely controlled device to transmit control data for each remotely controlled device.
equipment was used.

Problems to be Solved by the Invention In the first prior art, it is necessary to prepare as many remote control transmitters as there are remote controlled devices to be controlled, and the configuration and operation are extremely complicated. - On the other hand, when designing a system for a so-called integrated remote control device according to the second prior art, it is necessary to set a plurality of different remote control signals in advance in the remote control device. It is not possible to change or expand the remotely controlled device after purchasing the remote control device.

Additionally, once a manufacturer has set up this data configuration method, it is necessary for the manufacturer to continue using that configuration method for the foreseeable future. As a result, at some point, remote control devices that cannot be controlled by old remote control transmitters have to be sold or purchased. This situation is a big loss for both manufacturers and users.

An object of the present invention is to provide a remote control device that can easily and economically remotely control a plurality of unspecified remotely controlled devices with a single configuration.

Means to be Solved by the Invention The present invention provides a means for receiving a pulse signal train, a timer operated by the received pulse signal train, an input means having a plurality of input switches, and a method for counting the timer output and receiving the pulse signal train. a storage means for converting into a time sequence and storing it individually in a storage area corresponding to a large scale inch; This remote control device is characterized by including a large-scale generation means and a control means for controlling these operations and performing the counting operation and the like.

Operation According to the present invention, a pulse signal train in a predetermined manner for controlling a remote-controlled device is applied to the receiving means of the remote-controlled device. The pulse signal train received by the remote control device activates a timer built in the remote control device, counts the pulse signal train, and then stores the time train data in the storage area corresponding to the input switch of the storage means. Memorize separately. The pulse generating means generates a pulse train in a manner corresponding to the counting result of the storage area based on the stored time sequence data, and transmits this to the remote controlled device to control the remote controlled device.

Embodiment FIG. 1 is a system diagram of an embodiment of the present invention. The telephony receiver 1 can be controlled by a remote control device 2 for remotely controlling it. This remote control device 2 has functions of preset channels "1" to "12", increasing/decreasing the volume, and turning the power switch ON/OFF. On the other hand, the radio receiver 3 can be controlled by a remote control device 4 for remotely controlling it. This remote control device 4 has the functions of preset channels "1" to "12", increasing/decreasing the volume, and turning the power switch 0N10FF, similarly to the TV Noyon receiver 1. Further, the television receiver 1 and the Lanno reception rock 3 are provided with light receivers 5 and 6 for receiving control signals using infrared rays. In addition,
These two remote control devices 2.4 both configure data using PPM waves, but the number of bits and the data configuration method are set to be different. Therefore, the radio receiver 3 cannot be controlled by the remote control device 2, and conversely the television receiver 1 cannot be controlled by the remote control device 4.

Next, the configuration of the remote control device 7 of the present invention will be explained.

The remote control device 7 includes a key row 8 for calling up preset channels "1" to "12" of the television receiver 1 and Lanao reception 8!3, a key 9 for increasing the volume, a key 10 for decreasing the volume, a power switch, and a switch. Key 1 for 0N10FF
1. A switch switch 12 for selecting either the radio receiver 3 or the television receiver (i[1) is arranged, and the memory key 13 for storing control data has been completed. A light emitting diode (hereinafter abbreviated as LED) 14 that sometimes emits light, and a light receiver 15 for receiving infrared signals from the remote control device 2, the remote control device 4, etc. are provided.

When it is desired to control the television receiver 1, radio receiver 3, etc. using the remote control device 7, the following operations are performed in preparation.

Switch the changeover switch 12 to the TV Noyon receiver side,
When the memory switch 13 is pressed, the LED 14 lights up. Next, the infrared emitting part of the remote control device 2 is made to face the light receiver 15 of the remote control device 7, and the key 2a of the Bricent channel of the remote control device 2, for example, [1] is pressed.
Control data is sent from the remote control device 2 to the remote control device 7. The sent control data is decoded by a data decoder in the remote control device 7. Once the decoding is complete, I
-ED14 repeats blinking. Next, by pressing "f-8a" of the preset channel "1" of the remote control device 7, this decoded data is transferred to the recent channel of the remote control device 7, and L E D 1./l is turned off.

By similar operation, the remote control device's preset channels "2" to "12" key row 8, volume increase/decrease keys 9, 1 are set.
．． 0. Power switch ON10 Register the control data of the remote control device 2 in the FF key 11. Next, changeover switch 1
2 to the radio receiver side, and the control data of the remote control device 4 is registered in the remote control device 7 in the same manner as described above. When performing this registration operation, the operator does not need to know the data configuration method of the remote control device 2, the remote control device 4, etc. at all.

According to the method described above, even if you arbitrarily replace the TV soyon receiver or the radio receiver, the remote control device 7 can be used simply by redoing this registration operation.

The specific circuit configuration will be explained below with reference to FIG.

Most of the circuits are composed of so-called microcomputers that are program-controlled.

In the circuit of FIG. 2, the same functional components shown in FIG. 1 are indicated by the same reference numerals. Read-only memory (
The ROM (hereinafter referred to as ROM) 21 stores a control program for transmitting necessary control data from the remote control device 7 in chronological order. The ROM 22 stores a program for decoding the pulse wave, which is control data received by the photoreceiver 15 and converted by the detector 27.

Rewritable memory (hereinafter referred to as R.A.M.) 23
is for temporarily storing the control I signal from the photoreceiver 15. RAM24 is RA. The data decoded by the program in ROM22 from the data stored in M23 is stored in the corresponding address using the operation keys.Although not shown, at least this RAM
Only No. 2 and No. 24 have a battery-powered backup amplifier, and their memory contents are retained for a long time. RAM25
is used to temporarily store data generated during operation of the remote control device 7.

The timers 28 and 30 measure the rise time of the pulse itself of the detector 27 and the time interval between pulses, and
It is used to count the time interval between pulses to create a PPM wave from 24 data.

The one-shot multi-higher 2G is a programmable circuit that generates an arbitrary pulse rIJ once by giving data in advance.
The pulse obtained here is ANDed with the output of the carrier oscillator 35.
The infrared light emitting diode 34 is switched on and off by the circuit 33.
to drive.

In addition, the two key encoders are a 7-trix preset channel call key row 8, volume increase 10, decrease key 10, power switch ○N10 F F key 1
1 and memory key 13 into binary codes and transmits them to a central processing unit (hereinafter referred to as CPU) 40. In addition, an input/output terminal 31 is arranged to turn off the operation of the changeover switch 12 and turn on the LED 14, and each circuit is connected to a data bus 36.
, address bus 37, and interrupt control lines 38, 39 to CPU 4.01.

Next, a means for decoding the received control data will be explained.

FIG. 3 is an example of a PPM wave commonly used as an infrared remote control signal. The PPM wave has the same rise time t1 for all pulses, and is constructed by converting binary data into an inter-pulse time interval t2;t3.

And one data is one word I';S' il
l L 4 , and this pulse train will be repeated hereafter. In other words, 15 open L of input pulse data
1. Count t2, t3, t4, at least 2
The counting results of one word or more are temporarily stored in the RAM 23. If it is confirmed that the rise times of the pulses themselves of the stored count values are all the same = -, this is registered as 11.

The time intervals between each counted pulse are then sorted into three groups. In the example of FIG. 3, the time opening is t2°t3. L5
It can be classified into The relationship between these three groups is t2 < t3 < t5...
If (1), then the binary data at time t2 is set to “1”.
Then, the binary data at time t3 is defined as "0". Since the time L4 is the sum of the time intervals of all pulses and is the time for forming one word, the time L5 is determined according to the binary data formed in one word. Further, the number of tllt bits in one word is N-1, where N is the number of pulses in one word. The information obtained from this first word, tl, which opens at the rising edge of the pulse itself, time interval t between pulses corresponding to binary data "1", time interval between pulses corresponding to binary data "0", t3, the number of bits N-1 and t4 when configuring one word.
Decoding Wardrobe.

As a result of decoding, if the data structure is the same as that of the first word, it is determined that the control data is simply repeated.
001001. ) and the minimum number of repeated words (in this case, 1 word) may be stored in the RAM 23. If the second word is different from the first word, the third and fourth
It is necessary to decipher the words. As a result of decoding, if the first word and the third word have the same configuration, and the second word and the fourth word have the same configuration, it is assumed that one control command is composed of two words, and the first and second
The binary data of the words and the minimum number of repeated words (in this case, 2 words) may be stored in the RAM 23.

Next, the operation of storing the sent control data will be explained.

By pressing the memory switch 13 in FIG.
After lighting the LED 14, the CPU 40 executes the control data decoding program. Next, the signal data input from the optical receiver 15 is detected by the wave detector 27, and if the waveform is a pulse wave as shown in FIG. 3, this pulse is input to the CPU 40 from the interrupt input control line 39. be done.

-12= The response to this interrupt input can be realized at either the rising or falling edge of the pulse.

Upon receiving the pulse interrupt input, the CPU 40 immediately activates the timer 28. The CPU 40 reads the count data of the timer 28 every time a pulse interrupt occurs, and sequentially stores the values in the RAM 23. This work is done in RAM2
This process continues until all three memory areas are filled or there are no more pulse signal trains. When the count data of the timer 28 is stored in the RAM 23, the count data is formatted as one control command code by the aforementioned M reading program using the RAM 25 as a work area.

At this point, the LED 14 starts blinking.

Next, the keys to be registered are key string 8 and key 9.
Select from 10.11. By selecting it and pressing the r-key, it is stored in the data area of the address assigned to that key in the RAM 24, and at the same time the LED
14 is deactivated.

When data registration for all keys is completed through the series of operations described above, the RAM 24 stores at least the rise time tl of the pulse itself, the time gap between pulses t2 . [The time interval 1it3 between pulses during OJ, the number of bins N-1, the 1-word configuration time L4, and the minimum number of repeated words are stored.

Next, the operation of retransmitting this stored data will be explained.

When any operation key other than the memory key 13 is pressed, the program stored in the ROM 21 causes the memory key 13 to be pressed.
The data at the address corresponding to the key in 24 is read out, and in accordance with this read data, data corresponding to the rise time L1 of the pulse itself is sent to the one-shot multivibrator 26, and the timer 30 is sent to the one-shot multivibrator 26, which records the configuration time of one word. Send data corresponding to L4. Furthermore, timer 2
Data corresponding to time 12 or time L3, which is the first bit binary data, is sent to 8 and preset respectively.

Next, one-shot multivibrator 26, timer 30
, the timer 28 is activated one after another in a short period of time. timer 2
When the count of 8 is completed, time +2 or time t3, which is the second bit of binary data, is again preset in the timer 28, and the one-shot multivibrator 26 and timer 28 are activated. Repeat this way,
After the operation reaches the N-1th bit, the multivibrator 26 is activated and the last pulse of the first word is sent out after the timer 28 has finished counting.

The pulse train created one after another in this way is generated by the carrier wave oscillator 35.
is intermittent with the output of AND date 33 to drive an infrared light emitting diode 34. The carrier wave oscillator 35 is set to a generally used oscillation frequency of 38 KHz or 40 KHz, but an intermediate value of 39 KHz between the two may be used without any practical problem. Generally, the photoreceiver and detector installed in J1 include a resonant circuit for amplifying signals in a specific frequency band, and the sharpness Q of the resonance is not relatively high. In general, when a 39kHz signal is applied to a resonant circuit that has a resonant frequency of 38kHz, the level decreases by 1~
This is because the difference between the input frequencies is on the order of 2 clB, which is within a sufficiently permissible range as a shift in carrier frequency.

Now, if the minimum number of repeated words is 1 word, timer 3
It is sufficient to repeat the above-mentioned operation at the same time as the timer 30 finishes counting, and if the minimum number of repeated words is 2 words, the data for the second word will be sent in the same way as soon as the timer 30 finishes counting. After the word transmission is completed, the operation is repeated. This operation continues as long as the key is pressed.

Although the embodiment described above deals with the decoding and retransmission of PPM waves, it can also be applied to PWM waves by changing the control program. Further, in this embodiment, two remotely controlled devices are set, but this number can be increased arbitrarily and operation keys to be handled can be added as necessary.

Next, other embodiments of the present invention will be described.

FIG. 4 is a system diagram of an embodiment of a more economical remote control device according to the present invention. This embodiment achieves its economy by sharing the photoreceiver and detector required in the remotely controlled device during data construction and decoding.

The details will be explained below. Note that the same reference numerals are given to the same components as in the above-described embodiment. A photoreceiver 52 incorporated in a remote controlled device 56 sends its output to a detector 53, where a pulse train is created and sent to a decoder 5.
4. This series of signal processing systems is absolutely necessary in the remotely controlled device for remote control. A terminal 48 for taking out the output of the detector 53 from the remote controlled device 56, terminals 50, 5 for taking out the power source, and four ground terminals are provided.

On the other hand, the remote control device 57 has a parallel input/output circuit (hereinafter referred to as PI).
The input wires 44 and 45 of the PI043 can be connected to the terminals 48 and 49, and the power supply wires 46 and 47 of the PIO41 can be connected to and removed from the terminals 50 and 51 in one action. do. Also P■0
An electrically erasable and rewritable memory (hereinafter referred to as EEPROM) 42 is connected to 41, and power for writing to this memory is supplied from a remote controlled device 56.

In this embodiment, when all the terminals 48 to 51 are connected, the input lines 44 and 45 of the PIO 43 are grounded, and the data reading and decoding state is automatically established. Therefore, the memory switch 13 in the previous embodiment is unnecessary. When a control signal to be stored is emitted toward the light receiver 52,
The remote controlled device operates in accordance with the signal, and the converted r:pulse wave is also applied to the input line 44 of the PIO 43. This pulse train is decoded in the same manner as in the previous embodiment, and the data is stored in the EEPROM 42.

This EEPROM 42 does not lose its memory contents even if the power is removed, and does not require batteries for bank-up, but it has the disadvantage of high power consumption during erasing and rewriting. . However, in this embodiment, the power during erasing and rewriting is supplied from the internal power supply 55 of the remotely controlled device 56, and the internal power 1fA55.
can be used in conjunction with a power source for other purposes for the remotely controlled device,
It will not be a financial burden.

In addition, in the embodiments shown in Fig. 2 and vJ4, one control command is given to one operation key, but in order to make the target controlled device respond to one action with one operation key. , a plurality of control commands may be stored at once.

In addition, in FIGS. 2 and 4, the switch 12 is used as a switching means for specifying the remotely controlled device, but this can be incorporated into the key 7 trix, and it can be used to switch between L, CD, and LED.
It is also possible to add a means for displaying the PIi function of each operation key for each specified remote controlled device in combination with the display means according to the above.

Effects As described above, according to the present invention, data corresponding to a control pulse signal unique to each arbitrary remote controlled device is
This allows each cow to be stored individually in the storage means of the cow remote control device. Further, by converting this data into a control pulse signal and transmitting it to the remote controlled device, any remote controlled device can be controlled by the 4t- remote control device. This remote control device can easily store control pulse signals specific to the remote control device for a new remote control device as described above. The configuration consisting of a plurality of remotely controlled devices can be significantly simplified.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a configuration example including a remote control device 7 according to an embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of the remote control device 7, and FIG. 3 is a one-pulse diagram used in this embodiment. FIG. 4 is a waveform diagram showing an example, and FIG. 4 is a block diagram showing another embodiment of the present invention.

Claims (1)

[Scope of Claims] Receiving means for a pulse signal train; a timer operated by the received pulse signal train; input means having a plurality of input switches; counting the timer output and converting the pulse signal train into a time train; a memory means for individually storing the information in a memory area corresponding to the input switch; a pulse generating means for generating a pulse train in a manner corresponding to the counting result in the memory area by operation of the input means; A remote control device comprising: a control means for controlling and performing the counting operation and the like.