JPH02280498A - Programmable remote controller - Google Patents

Abstract

PURPOSE:To save the required memory capacity by receiving a remote control signal, decomposing the signal into plural time element data, storing the data into a memory and sending a specific remote control signal subject to conversion through the use of the data. CONSTITUTION:When a specific remote control signal is sent from an optional remote controller, a decomposing means 3 receives the remote control signal sent from the optional remote controller and decomposes the signal into plural time element data, and a write means 3 writes the data into a memory 4. When plural time element data are read from the memory 4 for sending the remote control signal, a conversion means 5 outputs the plural time element data to transmission means 6, 8 while converting the data into a specific remote control signal, and the remote control signal is sent to the controlled system. Thus, the specific remote control signal is generated and sent to each controlled system with less memory capacity.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a television receiver to be controlled.

The present invention relates to a remote control device having a memory for storing control signals for a video tape recorder, and particularly to a remote control device for learning and storing control signals for a plurality of control objects.

(Prior Art) Conventionally, a programmable remote control device (programmable remote control), as shown in Japanese Unexamined Patent Application Publication No. 63-75805, has been used to sample remote control signals of each device into two parts.
Learning and storing processing of each control signal is executed by converting the signal into a value and storing the binary signal in a memory.

(Problem to be Solved by the Invention) However, in the above conventional example, when an input signal as shown in FIG. 4(a) is binarized using the sampling signal shown in FIG. 4(b), the same The control signal is shown in Figure (C).

Therefore, sampling errors e1 to e4 occur at input signal change points (change points from H level to L level or from L level to H level), and multiple similar control signals (remote control waveforms) are stored. This results in the problem of sending incorrect commands to the controlled object.

This kind of problem can be improved by changing the frequency conditions of the sampling signal, that is, by processing it with a high-frequency sampling signal, but as the frequency increases, the amount of data that must be stored in the memory increases and the memory capacity increases. There was a problem in that the number of control items for the controlled object was limited. Furthermore, attempting to deal with this problem by increasing the memory capacity causes a serious problem that significantly increases the cost of the remote control device.

This invention was made to solve the above problems, and reduces memory capacity by storing specific remote control signal generation data while receiving and decomposing each remote control signal into a plurality of time elements. The object of the present invention is to obtain a programmable remote control device that can generate and transmit specific remote control signals for each controlled object.

(Means for Solving the Problems) A programmable remote control device according to the present invention includes a decomposition means that receives a remote control signal transmitted from an arbitrary remote control device and decomposes it into a plurality of time element data, and a decomposition means a writing means for writing time element data decomposed into a memory; a conversion means for reading out the time element data stored in the memory and converting it into a specific remote control signal; and a conversion means for reading out the time element data stored in the memory and converting it into a specific remote control signal; A transmitting means for transmitting data is provided.

(Operation) In this invention, when a specific remote control signal is transmitted from an arbitrary remote control device, the decomposition means receives the remote control signal transmitted from the arbitrary remote control device and converts it into a plurality of time element data. The writing means writes the decomposed plurality of time element data into the memory.

Then, when the plurality of time element data are read out from the memory for remote control signal transmission, the converting means converts the plurality of time element data into a specific remote control signal and outputs it to the transmitting means. Upon receiving this, the transmitting means transmits a remote control signal to the controlled object.

〔Example〕

FIG. 1 is a block diagram illustrating the configuration of a programmable remote control device showing an embodiment of the present invention. Reference numeral 1 denotes a light receiving section composed of, for example, a photodiode, and a light receiving section 1 receives signals from a plurality of remote control devices (not shown). remote control signal (
For example, infrared remote control signal RMC (duty ratio 50%)
, modulation frequency 40-50 KHz). 2 is a demodulator which converts the remote control signal RMe to the command signal COM (
(described later) and output to the boat manual power Po of the CPU 3. Note that the remote control signal RMC is directly input to the boat power P1 of the CPU 3. 5 is a modulator composed of, for example, an AND gate, and outputs the boat output P2.5 of the CPU 3. P3
The remote control clock RCLK output from the infrared light emitting diode 6 is outputted during the period when the command enable signal CEN is valid, and the remote control signal 6a is transmitted from the infrared light emitting diode 6 to the controlled object.

Note that the infrared light emitting diode 6 is connected to the resistor 7. A drive circuit including a transistor 8 and the like turns the signal 0N10FF.

The CPU 3 also serves as a disassembly means and a writing means, and analyzes the remote control signal RMC and command signal COM inputted to the boat manual PO and Pi using its own system clock, that is, the command signal COM (7) ON (H level f time), OFF (L level state) time element data, and time element data from the first rise to the fall of the remote control signal RMC (if the duty ratio or modulation frequency of the remote control signal RMC is different, this will be explained later) The remote control signal reproduction data is written to a predetermined address in the memory 4.

In this way, when a specific remote control signal is transmitted from any remote control device, the CPU 3 receives the remote control signal transmitted from any remote control device, decomposes it into a plurality of time element data, and decomposes the signal. multiple time element data
3 writes to memory 4.

Then, when a plurality of time element data are read out from the memory 4 for remote control signal transmission, a modulator 5 constituting a conversion means converts the plurality of time element data into a specific remote control signal (remote control signal 6a). At the same time, the signal is output to an infrared light emitting diode 6 serving as a transmitting means. In response to this, the infrared light emitting diode 6 transmits a remote control signal 6a to the controlled object.

FIGS. 2(a) to 2(e) are timing charts for explaining the time element data stored in the memory 4 shown in FIG. The remote control signal RMC shown in FIG.
'Command signal C input to boat manual PO of PU3
OM is shown, and FIG. 2(C) is the first time element data t1.
and the signal duty ratio of the remote control signal RMC is 50.
% corresponds to a half cycle of the remote control signal RMC.

FIG. 2(d) shows the second time element data 111°tt2, in which the signal duty ratio of the remote control signal RMC is 50%.
This corresponds to other cases.

FIG. 2(e) shows the third time element data Ttl.

This corresponds to a case where the signal duty ratio of the remote control signal RMC is 50% and its frequency changes.

Next, the operation shown in FIG. 1 will be explained.

When a remote control signal RMC is output from a remote control transmitter (not shown), this remote control signal RMC is received by the light receiving section 1 and input to the boat power P1 and the demodulator 2. At this time, the remote control signal RMC input to the demodulator 2 is converted into a command signal COM and is manually input to the boat PO.

In response to this, the CPU 3 detects the change point of the command signal COM inputted from the boat's manual power PO.
), the time T1 to T3 between the change points are sequentially counted, and the count data CDI to CDN (constituting the time element data) are sequentially stored in the memory 4, and the remote control is input from the boat's human power P1. Time from first rise to fall of signal RMC (Figure 2 (C)
The first time element data tl) shown in is stored in the memory 4.

Next, the first time element data tl stored in the memory 4
, the process of reproducing the remote control signal RMC based on the count data CDI to CDN is started as follows.

First, the CPU 3 outputs the boat output P2. Initialize P3 (both set to L level), and sequentially set time element data tl of 1,
The count data CDI to CDN are read and output to the modulator 5. Therefore, from the modulator 5 to the resistor 7. The remote control signal RMC is reproduced and outputted via the transistor 8, and the remote control signal 6a is transmitted from the infrared light emitting diode 6 to the controlled object.

Furthermore, the signal duty ratio of the remote control signal RMC is 50%.
In other cases, count data CDI~ from memory 4
The second time element data ttl and tt2 are read out together with the CDN, and the remote control signal 6a is transmitted from the infrared light emitting diode 6 to the controlled object in the same manner as described above.

Furthermore, the signal duty ratio of the remote control signal RMC is 50%.
When the frequency changes, the third time element data Ttl and Tt2 are read out from the memory 4 along with the count data CDI to CDN, and the remote control signal 6a is output from the infrared light emitting diode 6 in the same way as above. Sent to the controlled object.

FIG. 3 is a flowchart showing an example of a remote control signal processing procedure according to the present invention. Note that (1) to (8) indicate each step.

First, after initializing each part, the CPtJ3 waits for the receiving part 1 to receive the remote control signal RMC transmitted from a remote control device (not shown)1), and when it receives it, it sends the command signal COM and the remote control signal RMC. Boat input PO,P
Enter i (2).

Next, it is determined whether the duty ratio of the input remote control signal RMC is 50% or not. 3) If YES, it is determined whether there is a further change in frequency 4), No
If so, the first time element data decomposed into the first time element data tl, count data CDI to CDN, etc. are stored in the memory 4 (5). Then the remote control signal RMC
When a reproduction instruction is input, the first time element data tl and count data CDI to CDN are read out from the memory 4, the remote control signal RMC is reproduced, and the remote control signal RMC is sent to the controlled object from the infrared light emitting diode 6 as a remote control signal 6a. How to send 6
), the process ends.

On the other hand, if the determination in step (4) is YES,
Store the time element data decomposed into the second time element data ttl and tt2 together with the count data CDI to CDN in the memory 4 (7), return to step (6), and read the second time element data tt1 from the memory 4. ．． tt2. Read count data CDI~CDN and send remote control signal RMC
is reproduced to generate a remote control signal 6a from the infrared light emitting diode 6.
and send it to the controlled object as

On the other hand, if the determination in step (3) is No, the third
The time element data decomposed into the time element data Ttl and Tt2 are stored in the memory 4 (8), and the process returns to step (6), and the third time element data Ttl and Tt2 are stored from the memory 4.
．． The count data CDI to CDN are read out and the hair remote control signal RMC is reproduced and transmitted from the infrared light emitting diode 6 to the controlled object as the remote control signal 6a.

(Effects of the Invention) As explained above, the present invention provides a decomposition means that receives a remote control signal transmitted from an arbitrary remote control device and decomposes it into a plurality of time element data, and a time a writing means for writing element data into memory;
Since we have provided a conversion means that reads the time element data stored in the memory and converts it into a specific remote control signal, and a transmission means that transmits the specific remote control signal converted by this conversion means, it is possible to directly Compared to devices that sample remote control signals, the desired remote control signal can be reproduced from less time element data with less error accuracy. Therefore, excellent effects such as requiring only a small amount of memory capacity and providing an inexpensive device can be achieved.

[Brief explanation of drawings]

FIG. 1 is a block diagram illustrating the configuration of a programmable remote control device showing one embodiment of the present invention, and FIG.
3 is a flowchart illustrating an example of a remote control signal processing procedure according to the present invention; FIG. 4 is a timing chart illustrating the time element data stored in the memory shown in the figure; FIG. 4 is a flowchart illustrating a conventional remote control signal sampling process. This is a timing chart. In the figure, 1 is a light receiving section, 2 is a demodulator, 3 is a CPU, 4 is a memory, 5 is a modulator, 6 is an infrared light emitting diode, 6a is a remote control signal, 7 is a resistor, and 8 is a transistor. Figure 1 CDI-CDN (a) Figure Figure Figure

Claims (1)

[Claims] A programmable remote control device that has a memory that stores remote control signals transmitted from a plurality of remote control devices, converts the remote control signals read from the memory into optical signals, and transmits the optical signals to a controlled object. a decomposition means for receiving a remote control signal transmitted from a control device and decomposing it into a plurality of time element data; a writing means for writing the time element data decomposed by the decomposition means into the memory; A programmable remote control device characterized by comprising a converting means for reading out the time element data and converting it into a specific remote control signal, and a transmitting means for transmitting the specific remote control signal converted by the converting means.