JP3180488B2 - Remote control commander - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control commander suitable for use when devices such as a video tape recorder, a camera-integrated video tape recorder, a television receiver, and an FM tuner are remotely controlled.

[0002]

2. Description of the Related Art Conventionally, in a wireless remote control system using a remote control commander in which various devices are operated by remote control, a transmission code is transmitted from a remote control commander to a device (for example, a video tape recorder, a television receiver, or the like). ).

As shown in FIG. 10, the transmission code generally has a predetermined signal format, and includes a guide pulse A for causing a device to recognize the start of data, and an operation key provided on a remote control commander. A command code B for causing the device to determine which operation key has been operated and a category code C for specifying the type of the device. Are transmitted in chronological order from the remote control commander to the device in this order (see FIG. 11), and on the device side, the codes are analyzed and processing for responding to the operation of the user is performed.

[0004] In this case, if a device operated in the same signal format is nearby, another device may malfunction due to interference with a transmission code transmitted to a certain device.

Therefore, as shown in FIG. 12, several bits of an ID code ID set by a predetermined switch are added to a transmission code, and the transmission code is transmitted in a time series. When the category code and the ID code match (the category code C1 and the ID code ID1 match,
(A match between the category code C2 and the ID code ID2, a match between the category code C3 and the ID code ID3) and other codes are analyzed, and a process for responding to a user operation is performed.

In this case, the order of the ID codes is determined by associating the category codes with the ID codes on a one-to-one basis.

In a wireless remote control system using a transmission code to which the ID code is added, it is known that when the remote control commander is used indoors, malfunction of the device is prevented to some extent ( See JP-A-63-26092.

On the other hand, when the remote control commander is used outdoors, in a configuration where several bits of an ID code are set by a switch, the probability of duplication with another ID code is high, so that it is necessary to increase the number of bits of the ID code. In such a case, it has been pointed out that in a configuration in which an ID code is set by a switch for each bit, the number of hardware is increased, so that operability is poor for the user.

[0009] Therefore, a random code is set in the remote control commander and the device, so that the remote control commander and the device are remotely associated with each other in one-to-one correspondence (identification unique to the device to be operated). The signal is preset as a fixed code) has been proposed by the applicant (not disclosed).

[0010]

However, depending on the situation of use, the remote control commander and the device may not use the one-to-one correspondence but use an arbitrary identification signal (identification signal fixed code). May improve operability.

An object of the present invention is to provide a remote control commander in which a fixed code and a random code can be used individually.

[0012]

In order to solve the above-mentioned problems, the present invention provides a remote control commander having the following means. That is, in response to the predetermined operation,
ID code generation signal generation means for generating and outputting an ID code generation signal for a desired time, and the time at which the ID code generation signal generation means is turned on is the output start time of the ID code generation signal. On the other hand, the time at which the ID code generation signal generation means is turned off is the output end time of the ID code generation signal, and the output time of the ID code generation signal is measured. And an ID code determining means for determining the output time as a D code at a timing when the ID code generating signal generating means is turned off, and transmitting the remote control commander. The signal consists of a guide pulse signal that allows the device to recognize the start of data, and an operation provided on the remote control commander. A command code signal for causing the device to determine which operation key has been operated among the keys, a category code signal for specifying the type of device, and an ID for associating the remote control commander with the device. The ID signal is composed of a fixed code corresponding to a preset new category or an ID code determined by the determining means, and the determined ID code is a code of the predetermined fixed code. ID code determination means for determining whether or not the ID is within a range; and the ID code determination means
Teaching means for teaching that the ID code is within the range of the fixed code, provided that the code is determined to be within the range of the code, and replacing the ID code with the outside of the range of the fixed code. Provided is a remote control commander provided with ID code replacement means.

[0013]

In the remote control commander according to the present invention, the output time of the ID code generation signal is measured from the time when the ID code generation signal generation means is turned on and the time when it is turned off. The output time is determined as an ID code at a timing when the use signal generating means is turned off, and it is determined whether or not the determined ID code is within a preset fixed code range. The desired data input in response to the predetermined operation is set as data for generating a transmission signal.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a remote control commander according to the present invention will be described below with reference to the drawings. FIG. 1 shows a main configuration of a remote control commander according to the present embodiment. An ID generation switch 1 (ID code generation switch 1) generates and outputs an ID code generation signal for a desired time in response to a predetermined operation. The signal for generating an ID code output from the
The output time of the recognized ID code generation signal is measured (counted) by the timer 5 (output time measuring means). In this case, the ID generation switch 1 Is set as the output start time of the ID code generation signal, and the time when the ID generation switch 1 is turned off from the on state is set as the output end time of the ID code generation signal. .

It is preferable that the ID generating switch 1 is designed to have a low height and to be designed to be pressed by a pen tip or the like in order to prevent malfunction.

The timer 5 starts counting from an initial value "0", and when a so-called "digit overflow" occurs,
The counting is repeated such that the counting is performed again from the initial value “0”.

The output signal (output time) of the timer 5
Is input to a timer latch 7 (ID code determination means) and temporarily stored therein. The timer latch 7 sets the ID code generation switch 1 to be turned off after the ID code generation switch 1 is turned on, and the stored output time of the ID code generation switch 1 is set to the ID code generation switch 1. The determined ID code (random code) is output from the timer latch 7 and input to the memory 9.
It is memorized.

A fixed code set in advance is stored in the memory 9. The fixed code and the ID code output from the memory 9 are input to a fixed code check 11, and the fixed code check 11 sets and fixes the fixed code and ID code. It is determined whether the ID code is within the range of the fixed code (see FIG. 2).
If it is within the range, the user is instructed to that effect by characters or sounds by the teaching means such as the liquid crystal display 13 and the buzzer 15.

Therefore, when the teaching is not performed, the ID code is set outside the range of the fixed code. As a result, the user can surely set the ID code different from the fixed code and set the ID code. Can be easily confirmed.

Further, desired data for generating a transmission signal is input to the microcomputer 10 from a key matrix 17 (data input means), and output data from the key matrix 17 is recognized by a key scan 19 to set data 21. (Data setting means), desired data for generating a transmission signal is set by the input data (category code, command code) and the ID code from the fixed code check 11 and input to the transmission signal generation 23. Then, in the transmission signal generation 23, a transmission signal (consisting of a guide pulse signal, a command code signal, a category code signal, and an ID code signal) to be transmitted to the device is generated and input to the transmission 25.

In this case, the ID is added to the conventional transmission format.
Since the code is added and transmitted, there is no change in the transmission frame period, and the amount of ID code data is limited. In this embodiment, the ID code data is transmitted by being divided into several frames. The length of the ID code data is set so as not to be too limited. For example, when data with a 15-bit ID code is transmitted, the ID code data is transmitted in time series in three times. (See FIG. 13).

When the input ID code is within the range of the fixed code by the fixed code check 11,
In the data setting 21, setting of transmission data is not performed.

As described above, in this embodiment, I
The output time of the ID code generation signal is measured from the time at which the D generation switch 1 is turned on and the time at which the D generation switch 1 is turned off. Confirmed as ID code,
Since it is determined whether or not the determined ID code is within the range of a preset fixed code, desired data input in response to a predetermined operation is set as data for generating a transmission signal. As a result, since the fixed code and the random code can be used individually, there is an effect that the usability is improved, and there is an effect that a new category can be supported by using the fixed code.

Next, another embodiment will be described. FIG.
As shown in FIG. 7, in this embodiment, the output signal of the memory 9 is taken into the permutation 27.
Then, as understood from the flowchart of FIG.
When the input ID code input from the D code generation switch 1 is within the range of the fixed code, the input ID code is automatically changed to another value so that the transmitted ID code is out of the range of the fixed code. Is performed, and the following four procedures are given as the procedure of the replacement processing.

In this embodiment, as shown in FIG. 5, the transmission signal has 15 bits.
The D code is 14 bits, the parity is 1 bit, and the fixed code is a value ranging from “0H” to “FH” and is a random code (input ID code or ID code in which the input ID code is replaced). ) Is the value "10
H ”to the value“ 3FFFH ”.

In the first procedure, as shown in FIG.
By adding a predetermined specific value (fixed value) to the input ID code input from the ID code generation switch 1 (ID code = input ID code + fixed value),
The input ID code is replaced with an ID code (random code).

In this case, as the value of the fixed value, when the fixed code is a value from "0H" to a value "FH", the value "10H" which is at least one value larger than the maximum value of the fixed code to the value "3FF0H" (input The fixed value is added to the ID code, and the fixed code is not changed to a fixed code again due to carry.) For example, the input ID code is set to the value “00H”.
When the fixed value is the value “10H”, “00H” +
Since “10H” = “10H”, the ID code has been replaced with the value “10H”.

Next, in the second procedure, as shown in FIG. 7, an appropriate random value (for example, the number of times the microcomputer 10 has entered the stop mode) and a fixed value are included in the value of the input ID code. The value added and replaced is set as an ID code, and ID code = input ID code + fixed value + random value.

In this case, the value obtained by adding the value of (random value + fixed value) to the fixed code is the maximum value of the ID code “3”.
FFFH ”, a range of fixed values is set in a range that does not fall within the range of the fixed code again. For example, when the range of random values is a value“ 00H ”to a value“ F0H ”,
When the minimum value of the input ID code is “00H” and the minimum value of the random value is “00H”, the maximum value of the input ID code is “0FH” from the minimum value “10H” that avoids the fixed code. , A fixed value is set in a range up to a maximum value “3F00H” where the fixed code is avoided when the maximum value of the random value is the value “F0H”.
The code is the value “001H”, the random value is the value “10H”,
When the fixed value is the value “100H”, the ID code is “00”.
1H "+" 010H "+" 100H "=" 111H ".

Next, in the third procedure, the I shown in FIG.
A process is performed in which one bit is replaced from “0” to “1” among the 5 to 14 bits of the D code.

In this case, if the input ID code is within the range of the fixed code (value “0” to value “FH”), 5 bits to
Since all 14 bits are “0”, if one of them is replaced from “0” to “1”, the input ID code is out of the range of the fixed code (random code).

Further, by replacing one bit “0” with “1”, there is an advantage that the process of automatically replacing the ID code outside the range of the fixed code becomes faster.

Therefore, there are a case where the bit to be replaced with "1" is fixed and a case where the bit has randomness, and as shown in FIG. If it is selected and has randomness ("random value" is selected in step S1), the input I
D code (random value) is converted to decimal number,
The digit value is associated with the number of bits (step S2, step S3), and the corresponding bit is replaced (step S5).

For example, if the value of one digit is "0", the fifth bit is replaced with "1" from "0", and if the value of one digit is "1", the sixth bit is replaced with "0". "Is replaced with" 1 ", and if the value of one digit is" 2 ", the seventh bit is" 0 ".
To "1", and similarly, if the one-digit value is "9", the 14th bit is replaced from "0" to "1".

That is, when the random value is the value "0CH", its decimal number is the value "12", so that the one-digit value is "2" and the seventh bit "0" of the ID code is "1". ", The ID code has the value" 4CH "(= 10CH).
01100b).

On the other hand, when the bit to be replaced with "1" is fixed ("fixed" is selected in step S1), the fixed value is associated with the bit in the same manner as in the case of the random value. (Step S4) The processing of step S5 is performed in the same manner.

Next, in the fourth procedure, the ID code input before the ID code is input (if the current input is the third input, the second input ID code; The sum of the input ID code and the fixed value is added to the current input ID code to replace the input ID code (step S10 in FIG. 9).
If the D code is out of the range of the fixed code (NO in step S20), the ID code is set. If the D code is in the range (YES in step S20), the process proceeds to step S30 and is obtained by the replacement. Step S20 until a fixed value is added to the ID code and the ID code is out of the range.
The loop from step S30 to step S20 is repeated.

For example, if the input ID code is the value "00H",
The value of the ID code before occurrence is “01H”, and the fixed value is the value “08”.
In the case of "H", (value of input ID code) + (value of ID code before occurrence) + fixed value = value "00H" + "01H" + "0"
8H "=" 09H ", which is within the range of the fixed code. Therefore, the fixed value" 08H "is further added (step S30), and the ID code becomes" 11H ", and this ID code is out of the range of the fixed value. Therefore, it is set as it is.

In this case, the fixed value is set in the range of the minimum value "01H" to the maximum value "3FFFFH". The reason that the minimum value is not set to "00H" is that the ID code before occurrence is the value "00H". This is because no matter how many times the fixed value is added, the added value becomes “00H” and does not become a value outside the range of the fixed code.

The ID code before occurrence may be a value in either range of a fixed code and a random code, which generates a random code after a remote controller is used as a fixed code. This is because it is possible.

It should be noted that the values of the ID code and the like mentioned in the description of the above four procedures are different values corresponding to the number of fixed codes and the number of bits of the ID code.

As described above, in this embodiment, I
The ID code is automatically replaced outside the range of the fixed code on condition that the D code is determined to be within the range of the fixed code, so that the convenience is improved.

Note that the present invention is not limited to the above-described embodiment, and can adopt various other configurations without departing from the gist of the present invention.

[0044]

In the remote control commander according to the present invention, the output time of the ID code generation signal is measured from the time when the ID code generation signal generation means is turned on and the time when it is turned off. When the code generation signal generating means is turned off, the output time is determined as an ID code.
It is determined whether or not the D code is within the range of a preset fixed code, and desired data input in response to a predetermined operation is set as data for generating an output waveform. As a result of being able to use the random code individually, there is an effect that the usability is improved, and there is an effect that it is possible to use a fixed code to cope with a new category.

Further, the remote control commander according to the present invention teaches that the ID code is within the range of the fixed code on condition that the ID code is determined to be within the range of the fixed code. The user is I
There is an effect that the D code can be set reliably.

In the remote control commander according to the present invention, the ID code is replaced outside the range of the fixed code on condition that the ID code is determined to be within the range of the fixed code. There is an effect that setting can be performed reliably and easily.

Further, in the remote control commander according to the present invention, on the condition that the ID code is determined to be within the range of the fixed code, a certain bit among the bits other than the bit indicating the fixed code is inverted. Therefore, there is an effect that the replacement process can be performed quickly.

[Brief description of the drawings]

FIG. 1 is a diagram of a preferred embodiment of a remote control commander according to the present invention.

FIG. 2 is a flowchart of an embodiment.

FIG. 3 is a circuit configuration diagram in another embodiment.

FIG. 4 is a flowchart in another embodiment.

FIG. 5 is a correlation diagram showing the relationship between bits and codes.

FIG. 6 is a flowchart in another embodiment.

FIG. 7 is a flowchart in another embodiment.

FIG. 8 is a flowchart in another embodiment.

FIG. 9 is a flowchart in another embodiment.

FIG. 10 is a diagram illustrating the configuration of a conventional signal format.

FIG. 11 is an explanatory diagram of a configuration of a signal format with an ID code.

FIG. 12 is an explanatory diagram showing a transmission example of a conventional signal format.

FIG. 13 is an explanatory diagram showing a transmission example of a signal format with an ID code.

[Explanation of symbols]

 1 ID generation switch 3 Switch scan 5 Timer 7 Timer latch 9 Memory 11 Fixed code check 13 Liquid crystal display 15 Buzzer 17 Key matrix 19 Key scan 21 Data setting 23 Transmission signal generation 25 Transmission 27 Replacement

Claims (1)

(57) [Claims] In response to a predetermined operation, an ID is provided for a desired time.
An ID code generation signal generating means for generating and outputting a code generation signal; and a time at which the ID code generation signal generating means is turned on is set as an output start time of the ID code generation signal. Output time measuring means for measuring the output time of the ID code generation signal by setting the time at which the ID code generation signal generation means is turned off as the output end time of the ID code generation signal; And an ID code determination means for determining the output time as an ID code at a timing when the use signal generation means is turned off. A transmission signal of the remote control commander includes: Of the guide pulse signal that makes the device recognize the start and the operation keys provided on the remote control commander, A command code signal for causing the device to determine whether or not the operation key has been operated, a category code signal for specifying the type of device, and an ID signal for associating the remote control commander with the device. The ID signal may be a fixed code corresponding to a preset new category or an ID determined by the determination means.
An ID code determination unit configured to determine whether the determined ID code is within the range of the preset fixed code; and the ID code determination unit determines that the ID code is the code And teaching means for teaching that the ID code is within the range of the fixed code, provided that it is determined that the ID code is within the range of the fixed code.
A remote control commander, comprising: D code replacement means.