JPH0572157B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a remote controller that remotely controls equipment using means such as infrared rays, ultrasonic waves, or radio waves.

(2) Prior art and its problems Wireless remote controllers that use ultrasonic waves or infrared rays are often used in television sets, video tape recorders, and the like. Remote controllers are usually operated by key operations, and when a key is pressed, a corresponding code is serially transmitted to the main unit using ultrasonic waves or infrared rays. When there is only one receiving device, there is no problem in sending only a single code, but when there are multiple receiving devices, for example, a television receiver and
When a VTR and CD player are placed in the same room, transmitting only a single code may cause interference. Even though I only want to operate the television receiver, a problem arises in which the VTR also operates at the same time. Therefore, in order to solve this problem, a product identification code (custom code) is sent together with the key code, and the following method is used.

As shown in FIG. 1, first, a reader code is transmitted as the beginning of a signal. For example, a certain period of time
The code in which the signal state continues to be LOW is considered the leader code. After detecting this reader code, a custom code is output and the data is followed by *
An ID code expressed in negative logic, indicated by a mark, follows. After that, a data code is output, and that data is followed by a data code expressed in negative logic indicated by an asterisk. Custom code and data are 8BIT long.
Furthermore, the reason why the custom code and data code are each transmitted twice with positive logic and negative logic is to check for erroneous reception.

By doing this, the VTR will not malfunction due to the remote controller of the television receiver.

In the case of household equipment, there is no need to consider having multiple identical television receivers in one room, but in the case of measuring instruments, multiple identical equipment may be installed in the same place. , and may be remotely controlled. Under such circumstances, if a custom code is used to simply distinguish between products, all the same devices will operate when the remote controller is operated.

For this purpose, an identification code (ID code) is established to identify each device to be controlled.
A controlled object is controlled using a code and a data code as a pair.

However, in this case, if the operator does not know the ID code of a specific controlled object, it is not possible to cause the controlled object to perform a desired operation.

(3) Purpose of the Invention In order to improve such inconveniences, the present invention provides a system in which an operator can arbitrarily check and set the identification code between the remote controller and the main unit even if the identification code is unknown. The present invention provides a wireless remote controller that can be operated.

(4) Structure and operation of the invention First, control using an ID code, which is one of the functions of the present invention, will be explained.

The present invention adds a changeable ID code to data transmitted from a remote controller, as shown in FIG. 2, so that even the same model can be assigned different ID numbers.

The transmitter of the remote controller may be e.g.
It has a configuration as shown in FIG. Normally, it has a key switch matrix 1 having a plurality of key switches and rotary encoders, and the output generated by pressing the key switch is transmitted via the controller 2 to the custom code generation circuit 3a and ID
Data is added to the code generation circuit 3b and data generation circuit 3c, and data corresponding to the custom code, ID code, and key is created, and converted into a serial pulse train in the parallel/serial conversion circuit 4 to the light emitting circuit 5.
is converted into light and transmitted. The custom code is a model-specific code and is stored in a non-rewritable memory element. The ID code is stored in a rewritable storage element so that the user can freely rewrite it. When a key on the transmitter is pressed, a corresponding code is output, but a custom code or ID code is output before that. Examples of the format are shown in FIGS. 2 and 4, but it goes without saying that the combination of these custom codes, ID codes, and data is not necessarily limited to this, and various modifications can be considered.

In the receiving section, for example, as shown in the block diagram of FIG. 5, a signal sent in the form of light is converted into an electrical pulse train by an optical/electrical conversion circuit 11, and a leader pulse is detected by a leader pulse detection circuit 12. At times, switch SW1 becomes conductive. Therefore,
First, when the custom code discrimination circuit 13 receives a predetermined number of custom code bits from the pulse train,
Check against custom code specific to this device. If the codes match, the switch SW2 becomes conductive, and the ID code discrimination circuit 14 receives the pulse train that is subsequently sent. ID
When the code discrimination circuit 14 receives the number of ID code bits, it compares it with the current ID code stored in the rewritable ID code memory 15.
If the ID codes match, the switch SW3 becomes conductive, and the data code receiving circuit 16 can receive the subsequently sent pulse train. The data code receiving circuit 16 passes the received data to the controller 17.

As described above, by performing discrimination using custom codes and ID codes, interference with unnecessary equipment can be avoided.

Next, control using the master ID code in the present invention will be explained.

Transmitters are usually made extremely small.
They usually do not have a display device such as an LCD. In this way, the transmitter itself does not have a display section.
To set or recognize an ID, e.g.
The ID can be changed by providing a dip switch or the like, checking the position of the switch, and resetting the dip switch.

However, including a display device makes the transmitter bulky and expensive. When the display device is included in the main body with the receiving section, the following configuration can be adopted.

That is, as shown in FIG. 6, the transmitting unit is usually provided with several key switches, which are used to control the main body. For example, in the case of FIG. 6, when the key switches from f0 to f9 are pressed, the code corresponding to the key switch is output. According to this code and this invention
The ID code is output as a pair. If the receiving body has the same ID code as this ID code, it will receive this code and perform the corresponding operation.

Since the sending unit does not have a display device, it is not possible to confirm what the ID number of the sending unit is. In the case of FIG. 6, a key switch (ID CONFIRM) for setting or confirming the ID is provided as shown in the figure. To confirm the ID code, press the ID CONFIRM key switch while pressing the ID key switch, and the master ID code and ID CONFIRM code will be output as a pair. Further, when changing the ID number, press a numerical key switch from 0 to 9 while pressing the ID key switch. The numeric key switch is also used as a function switch. For example, in FIG. 6, when a numerical key switch is pressed while pressing the ID key switch, the numerical value of the ID number is displayed on a display device (not shown) on the main body. Visually check the number and press the ENT key while holding down the ID key switch to switch to the new ID number at that point.

In this series of ID confirmation or change operations, the main body determines that it is the master ID code, receives and interprets the paired code.
The master ID code may be set to "1" in the most significant bit of the current ID code and set as the master ID code, or it may be a special value (for example, FF ₍₁₆₎ ).
may be used as the master ID code. Further, in the above explanation, the master ID code is output when pressing the ID key switch while pressing another key switch, but it goes without saying that this is not necessarily the case and various modifications are possible.

As shown in the circuit block of FIG.
It consists of a memory 23, an LED driver 24, and an LED 25, and the receiving section includes a light receiving element 26, a buffer 27,
It is configured to consist of a CPU 28 and a memory 29,
It goes without saying that the functions described above can be realized.

As is clear from the above description, the wireless remote controller of the present application can be summarized as follows.

As shown in FIG. 8, the control function using the ID code of the present application includes: (a) an operating means 101; and a data generating means 102 that generates data corresponding to the operation by operating the operating means.
, ID code storage means 103 , ID code generation means 104 for generating the ID code stored in the ID code storage means, and output of the data generation means and output of the ID code generation means as a pair and wirelessly generated. a transmitting device 100 having: a transmitting means 105 for transmitting signals; b a receiving circuit 201 for receiving the wirelessly transmitted signal; a body ID code storing means 202; and an ID from the output of the receiving means. ID determining means 203 for determining whether the code matches the body ID code; and an ID determining means 203 that extracts data from the output of the receiving means based on the output of the ID determining means, interprets the content, and performs an operation corresponding to the operation. Data interpretation means 2 for instructing
04; and an ID code changing means 106 for causing the transmitting apparatus 100 to generate an ID code that can be changed from the operating means; and the receiving apparatus. and body ID code changing means 205 for changing the body ID code, and transmits the data and ID code as a pair.

Transmitting device 100 and receiving device 20 of this system
An example of operation with 0 is shown in FIGS. 9a and 9b, respectively.

Next, the present invention, which performs control using an ID code and control using a master ID code, as shown in FIG. 302
, ID code storage means 303 , ID code change means 304 , ID code generation means 305 that generates the ID code stored in the ID code storage means, and master ID code generation means 307 that generates a master ID code. and a transmitting means 30 for wirelessly transmitting the output of the data generating means, the ID code generating means, and the master ID code generating means.
6, a transmitting device 300 having the following: b) a receiving circuit 401 for receiving the wirelessly transmitted signal; a main body ID code storage means 402 for storing a main body ID code; and a device for changing the main body ID code. Body ID
code changing means 403; ID code determining means 404 for determining whether the ID code from the output of the receiving circuit matches the main body ID code; and master ID code determining means 406 for determining the master ID code. , data interpreting means 405 for extracting data from the output of the receiving circuit for display based on the outputs of the ID discriminating means and the master ID code discriminating means, interpreting the contents, and instructing an operation corresponding to the operation; a receiving device 400 having a display function, and when the data and the ID code are paired and transmitted from the transmitting device 300, the main body performs a predetermined operation, and the transmitting device 3
ID code stored in the ID code storage means 303 in 00 or the receiving device 4
When checking the ID code stored in the main body ID code changing means 403 in 00, or when the transmitting device 300 changes the main body ID code using the main body ID code changing means 304, the master ID When the data is transmitted together with the code, the receiving device 400 is configured to be able to interpret the data regardless of the body ID code and instruct the body to perform operations including displaying the body ID in response to the data. It is a wireless remote controller.

Transmitting device 300 and receiving device 40 of this system
An example of operation with 0 is shown in FIGS. 11a and 11b, respectively.

(5) Effects of the Invention As explained above, the present invention first adds an ID code that can be changed by the user to the data transmission method of the conventional wireless remote controller, even if the model is the same. It has a function that allows you to distinguish between devices and remotely control them. In addition, if the main body is equipped with a display device on the output side of the receiving device 400, for example, the small transmitting unit can be provided with ID confirmation and change functions at low cost without the need for a display device or a deep switch. You can get the desired effect.

[Brief explanation of the drawing]

FIG. 1 is a time chart showing an example of a signal by a conventional transmission method for a wireless remote controller, FIG. 2 is a time chart showing an example of a signal by a transmission method of the present invention for a wireless remote controller, and FIG. A block diagram showing an example of a circuit of a transmitting section in the case of an optical remote controller, FIG. 4 is an example of a modification of FIG. 2, and FIG. 5 is a block diagram showing an example of a circuit of a receiving section in the case of an optical remote controller. FIG. 6 is a schematic diagram showing an example of an operation panel of a transmitting unit that does not have a display device, and FIG. 7 is a block diagram showing an example of a circuit using a CPU as the transmitter/receiver section in the case of an optical remote controller.
8 and 10 are block diagrams showing functional configuration examples of the present invention, FIGS. 9a and 9b are flowcharts showing the operation of the configuration example shown in FIG. This is a flowchart showing the operation.

Claims (1)

[Scope of Claims] 1a: an operation means; a data generation means for generating data corresponding to the operation by operating the operation means; an ID code storage means; an ID code change means; and the ID code storage means. an ID code generating means for generating an ID code stored in the ID code, a master ID code generating means for generating a master ID code, an output of the data generating means, an output of the ID code generating means and the master ID code generating means. a transmitting device for wirelessly transmitting a signal; b. a receiving circuit for receiving the wirelessly transmitted signal; a body ID code storage means for storing a body ID code; and a body ID code for storing the body ID code. Body ID to change
code changing means; ID code determining means for determining whether the ID code from the output of the receiving circuit matches the main body ID code; master ID code determining means for determining the master ID code; and the ID code. data interpreting means for extracting data from the output of the receiving means for display based on the outputs of the code discriminating means and the master ID code discriminating means, interpreting the contents, and instructing an action corresponding to the operation; a main body with a display function that includes a display function, and causes the main body to perform a predetermined operation when the transmitting device transmits the data and the ID code as a pair;
When confirming the ID code stored in the ID code storage means or the ID code stored in the main body ID code storage means in the receiving device, or when the transmitting device uses the main body ID code changing means to confirm the main body ID When changing the code, when the data is transmitted together with the master ID code, the receiving device interprets the data regardless of the main body ID code and displays the main body ID on the main body in accordance with the data. A wireless remote controller configured to direct operations including;