JPH05153673A - Device to be controlled by remote control - Google Patents

Abstract

PURPOSE:To fetch and process plural remote control signals whose formats are different for each maker and each apparatus. CONSTITUTION:A remote control signal generated from a remote control signal transmitting equipment 1 is received by a receiving part 3 of a photoamplifier, etc., and inputted to a control microcomputer 4. The control microcomputer 4 discriminates to which format the remote control signal from the receiving part 3 belongs. The discriminated remote control signal is allowed to branch to a processing part corresponding to its format, and a prescribed processing is executed. By control signals 11-13 obtained as its result, a prescribed circuit, etc., are controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control target capable of capturing and processing a plurality of remote control signals (hereinafter referred to as "remote control signals") having different formats for each manufacturer or each device. Regarding the control device.

[0002]

2. Description of the Related Art Conventional remote control (hereinafter,
In "remote control", only remote control signals based on one format are used. That is, the remote control signal transmission device and the main body device that receives and controls the remote control signal transmission device have an integral relationship.

[0003]

Therefore, a remote control signal generator based on another format cannot control the device. It is an object of the present invention to provide a remote control controlled device that enables remote control even in different formats.

[0004]

According to the present invention, in a device which is controlled by a remote control signal using infrared rays or radio waves, it is determined which format the remote control signal issued from the remote control signal transmitting device is. Comparing the read remote control signal with the stored control signal, and a format determining means, a means for branching the remote control signal for which the format has been determined so as to capture corresponding to each format. The remote control controlled device having a processing means for discriminating the content of the control command by the above and outputting the corresponding control signal, and a means for extracting the output control signal and outputting it to the controlled circuit corresponding to the control signal. A device is provided. The above format discriminating means is as follows. (1) The determination is made based on the presence / absence of a leader code and the difference between the duration and the rest time of the leader code. (2) The determination is made based on the difference between one signal forming one command and two signals forming one command. (3) Discrimination is made based on the difference between the signals of the first data group and the second data group. (4) Judging from the difference in data signal interval. (5) It is discriminated because the case where two commands form one command and the case where one signal forms one command differ depending on the number of data bits. (6) Judgment is made based on the difference in all signal intervals. (7) Judgment is made based on the difference between the two signals when the two signals form one command.

[0005]

The remote control signal emitted from the remote control signal transmission device is received by the receiving unit such as a photoamplifier and input to the control microcomputer. The control microcomputer determines to which format the remote control signal from the receiving unit belongs. The discriminated remote control signal is branched to the processing unit corresponding to the format and subjected to predetermined processing. A predetermined circuit or the like is controlled by the control signal obtained as a result.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A remote control controlled device according to the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram of essential parts showing an embodiment of a remote control controlled device according to the present invention. In FIG. 1, reference numeral 1 is a remote control signal transmitting device for transmitting a remote control signal of infrared rays or radio waves (UHF, etc.), 2 is a main device controlled by the remote control signal, and 3 is reception for receiving infrared rays or radio waves provided in the main body device 2. A part (photoamplifier or the like), 4 is a control microcomputer (hereinafter referred to as “microcomputer”), and 5 is an OR circuit for extracting a control signal. FIG. 2 shows the format of the remote control signal and its type.

First, the types of remote control signal formats will be described with reference to FIG. The type shown in FIG. 2 is a format often used by each manufacturer, each device, and the like. In addition, T1, T2, etc. in the following represent time. a. Difference of Presence or Absence of Leader Code and Interval (1) When (T1 + T2) is a leader code, there is a difference whether it is present or not. If (a) is present,
The case without (b) is shown. If there is a reader code, then the data code indicated by T3 is transmitted. In the case of (b), T4 is the data code. (2) T1 and T2 are different even if there is a reader code.
For example, T1 (2.4 ms-9 ms), T2 (0.6 ms-4.5 m)
s) different. [Discrimination method] Presence / absence of reader code and T1 (duration)
And T2 (pause time).

B. Difference between configuring one command (data string representing one operation command) with one signal or configuring one command with two signals: (a) one command with one signal, (b) one command with two signals Shows the case of configuring [Determination Method] Whether or not the next bit signal is input within a fixed time is checked by an internal timer of the microcomputer 4, and when the fixed time is exceeded, the check is completed. That is,
A reference TS is provided, and if TS <T6 in (a), then T5 (1
Signal) becomes one command, and in (b), T8 <TS <
If it is T9, one command will be T7 (2 signals). The reference TS is the time set so that such a distinction can be made.

C. Differences due to signal differences between the first data group and the second and subsequent data groups are the same (a) and different (b). The first data group is the same for both. [Discrimination Method] The determination is made based on whether the second data group has the same signal as the first data group. That is, in (a), T10 and T11
Since it is the same as "the same", in (b) T12 and T13
It is different because it is different.

D. Difference due to data (0, 1) signal interval A reference TS is provided, and those below TS are set to "0" and above TS are set to "1". [Discrimination Method] Discrimination is made from T14 and T15. That is, if TS> T14, the T14 part is "0", and TS
If T15, the T15 portion is determined to be "1".
Note that in most cases T15 is twice that of T14. e. Depending on the number of data bits, depending on the number of bits, two signals may form one command and one signal may form one command. For example, if the number of bits is 10, 12, 16 and 22, 1 command is composed of 2 signals, and if the number of bits is 24, 32 and 48, etc.
A signal constitutes one command. The total number of bits in the case of composing one command with two signals is double this. [Determination method] One command per signal from the number of data bits,
It is discriminated whether it is one command by two signals. Therefore, a little (22
Bits below) correspond to the latter.

F. Difference in all signal intervals, that is, T16 shown in the figure differs depending on the signal. [Discrimination Method] The discrimination is made from the interval T16 until the next signal. g. Difference between two signals of one command type and the difference between the two signals is a modification of the above b (b), and in (a), b (b)
Similarly, if two signals in T7 are the same, it is regarded as “the same”, and in (b), 1 of 1 signals in 2 signals
Part data is inverted, but if the first signal has a reader code but the second signal does not have it, it is "different".
Is determined as.

Next, the operation of the present invention will be described with reference to FIG. The remote control signal emitted from the remote control signal transmission device is received by the receiving unit 3 and input to the microcomputer 4. The microcomputer 4 determines which of the formats shown in FIG. 2 the input signal has. This discrimination method is as described above. In this determination, if the signals are very similar to each other or the manufacturer code in the data is different in the same format even if they do not correspond to the above a to g, the determination is made from the following data contents that have been taken in. On the other hand, the microcomputer 4 has a signal processing unit (A, B to G) corresponding to each format therein. Accordingly, the above-mentioned discriminated remote control signal is branched into the corresponding processing section and is taken in, and is subjected to data processing. Data processing here means
By comparing the fetched remote control signal with the stored control signal, the content of the control command is determined and the corresponding control signal is output. Since the control signals are output from the signal processing units corresponding to the formats, it is necessary to extract them and output them to the controlled circuit in the subsequent stage. The OR circuit 5 plays this role. Then, each circuit is controlled by the control signal. Specific examples of the control signal for a television receiver include power on / off, channel switching, and volume.

In the figure, the format type "a" and "capture processing unit A" are the same, "b" is the same "B" (hereinafter the same).
And correspond respectively. For example, when the format of the received remote control signal corresponds to "a" in FIG. 2, data processing is performed by the "capture processing unit A" and the control signal 11 is output from the processing unit. The OR circuit 5 extracts this and supplies it to the corresponding controlled circuit. Further, if the data processing is performed by the "capturing processing unit B", the control signal 12 is output from the processing unit, and if the data processing is performed by the "capturing processing unit G", the control signal 13 is output from the processing unit. Extract each.

[0014]

As described above, according to the present invention, even if the remote control signal has a different format, it is determined which type the format belongs to, and data processing conforming to the format is performed. Since the designated device is controlled, it is possible to use a remote control signal generator having a different format for the device,
This contributes to the performance improvement of the remote control device.

[Brief description of drawings]

FIG. 1 is a principal block diagram showing an embodiment of a remote control controlled device according to the present invention.

FIG. 2 is a format diagram of a remote control signal.

[Explanation of symbols]

 1 remote control signal transmitter 3 receiver (photoamplifier etc.) 4 control microcomputer 5 OR circuit

Claims (8)

[Claims] 1. In a device controlled by a remote control signal using infrared rays or radio waves, format determining means for determining which format the remote control signal issued from the remote control signal transmitting device is, and the format. The control command content is determined by comparing the means for branching the remote control signal determined in accordance with each format so as to be captured with the stored remote control signal and the stored control signal. A remote control controlled device comprising: processing means for outputting a corresponding control signal; and means for extracting the output control signal and outputting it to a controlled circuit corresponding to the control signal. 2. The remote control according to claim 1, wherein the format determination means of the remote control signal determines the presence or absence of a reader code and a difference between a duration and a rest time of the reader code. Controlled device. 3. The remote control signal format discriminating means discriminates based on a difference between one signal forming one command and two signals forming one command. The described remote control controlled device. 4. The remote control controlled device according to claim 1, wherein the remote control signal format discrimination means discriminates from the difference between the signals of the first data group and the second data group. .. 5. The remote control controlled apparatus according to claim 1, wherein the remote control signal format determining means is configured to determine based on a difference in data signal interval. 6. The remote control signal format discriminating means discriminates when two signals form one command and when one signal forms one command, depending on the number of data bits. The remote control controlled device according to claim 1, wherein: 7. The remote control controlled device according to claim 1, wherein the remote control signal format discrimination means discriminates based on a difference in all signal intervals. 8. The remote control controlled device according to claim 1, wherein the remote control signal format discrimination means discriminates from the difference between the two signals when two signals form one command. apparatus.