JPH0685596B2 - Remote control transmitter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a remote control transmitter such as a CATV converter.

(B) Conventional technology Fig. 3 shows a schematic block diagram of a CATV broadcast receiving system.
(1) is a CATV converter, (2) is a television receiver, (3) is an FM stereo receiver, and (4) is a speaker. In this system, video signals and audio signals for a plurality of TV channels and audio signals for a plurality of radio channels are transmitted via the cable (5). And
In the TV receiving mode, the CATV converter (1) receives a predetermined TV channel video signal and the FM stereo receiver (3) receives the TV channel audio signal. In the FM radio receiving mode, the CATV converter is used. Please stop the above
The FM stereo receiver (3) receives the FM radio channel audio signal.

Normally, the CATV converter (1) in the above system and
The FM stereo receiver (3) is controlled by the remote control transmitter (6), respectively.

However, since the CATV converter and the FM stereo receiver function independently of each other, it is necessary to control the same function key such as a channel key by different control codes. Therefore, conventionally, when two controlled devices are controlled by one remote control transmitter, the method disclosed in
As shown in Japanese Patent Laid-Open No. 58-97967, all the keys required for each controlled device are independently provided. For this reason,
For example, the channel operation keys and the like are also separate, resulting in poor operability and an increase in the number of keys.

(C) Problems to be Solved by the Invention The present invention has been made in view of the above-described points, and in a remote control transmitter that controls a plurality of controlled devices, the same function key such as a channel key is shared. The purpose is to

(D) Means for Solving the Problems The present invention is a remote control transmitter for controlling a plurality of controlled devices, and specifies and controls the operating state of at least two controlled devices among the controlled devices. Designated control key means, function key means common to each controlled device, storage means for storing designation contents of the designated control key, transmission based on operation of the function key means and storage content of the storage means It comprises a control means for deciding a control code to be performed, and a transmitting means for transmitting the control code decided by the control means to each control device. When the control code for designating and controlling the operating state of the control device is transmitted to each of the controlled devices and the function key means is operated, the control code by the function key means is changed to the control code of the control device. A remote control transmitter that transmits to a controlled device.

(E) Action Even if the same function key is operated by the above-mentioned means, different control codes are transmitted depending on the controlled device designated by the designation key.

(F) Embodiment One embodiment of the present invention will be described below with reference to the drawings.

1 and 2 are an external view and a block diagram of the remote control transmitter according to the present embodiment, and (7), (7) ... Designate a two-digit channel provided in the operation section of the remote control transmitter. Key (8) is the CATV converter (1)
And a TV key to put the FM stereo receiver (3) in TV mode,
(9) is a radio key that stops the operation of the CATV converter (1) and sets the FM stereo receiver to the radio mode, and (10) is a stop key that stops the operations of the CATV converter and the FM stereo receiver.

(11) is an operation unit including the above keys, (12) is a control unit including a micro computer, (13) is a storage unit that stores the mode selected by the operation unit via the control unit, (14) is a transmission unit that transmits a control code based on an instruction from the control unit.

Next, the operation of the remote control transmitter will be described.

To receive 12 channels on TV, first press TV key (8). Then, the depression of the TV key is detected by the control section (12), and the storage section (13) stores the TV mode. At the same time, the control section (12) instructs the transmission section (14) to transmit the control code representing the FM stereo receiver (3) to the TV audio reception mode so as to set the mode. This puts the FM stereo receiver (3) into TV audio reception mode.

Next, tuning is performed. First, press the channel key (7) indicating "1". Then, the transmission section (14) transmits a control code for controlling the CATV converter and a control code for the FM stereo receiver, which represent "1". Then, when the channel key (7) indicating "2" is pressed, each control code indicating "2" is similarly transmitted.

As a result, the system receives the TV12 channel.

Next, the case of receiving the FM radio 45 channel will be described. In this case, first press the radio key (9). Then, the control unit (12) detects the pressing of the radio key and causes the storage unit (13) to store the radio mode. At the same time, the control unit (12) transmits the control code indicating this mode and the control code for stopping the CATV converter (1) so as to put the FM stereo receiver (3) into the FM radio reception mode. Instruct. This puts the FM stereo receiver (3) into FM radio reception mode.

Next, tune in. First, press the “4” channel key (7). Then, the transmitting section (14) transmits a control code for controlling the FM stereo receiver, which represents "4". Then "5"
When the channel key (7) is pressed, the control code indicating "5" is transmitted in the same manner.

As a result, the system receives an FM radio 45 channel.

When the stop key (10) is further pressed, the control codes for stopping the CATV converter and the FM stereo receiver are transmitted, and the system is stopped.

(G) Effect of the Invention As described above, according to the present invention, even if the same function key is operated, different control codes can be transmitted depending on the controlled device designated by the designation key, and the function key is transmitted to a plurality of controlled devices. Since they can be shared, operability is improved and an increase in the number of keys can be prevented.

[Brief description of drawings]

FIG. 1 is an external view of a remote control transmitter according to an embodiment of the present invention, FIG. 2 is the same block diagram, and FIG. 3 is a schematic block diagram of a CATV broadcast receiving system. (11) …… Operation section, (12) …… Control section, (13) …… Storage section, (14) …… Sending section

Claims (1)

[Claims] 1. A remote control transmitter for controlling a plurality of controlled devices, comprising designated control key means for designating and controlling an operating state of at least two controlled devices among the controlled devices, and each controlled device. Function key means common to devices, storage means for storing the designated contents of the designated control key, and control means for deciding a control code to be transmitted based on the operation of the function key means and the stored contents of the storage means. And transmitting means for transmitting the control code determined by the control means to each controlled device, and when the designated control key means is operated, the operating state of each controlled device is designated and controlled. When the control code is transmitted to each of the controlled devices and the function key means is operated, the control code by the function key means is transmitted to each of the controlled devices. Remote control transmitter and butterflies.