JP2718219B2 - Signal selection device - Google Patents

Description

The present invention relates to a video tape recorder and other devices (for example,
The present invention relates to a signal selection device built in a video tape recorder when used in connection with an FM tuner or the like.

2. Description of the Related Art In recent years, with the widespread use of video tape recorders, signal selection devices are connected to an external input terminal when recording by connecting a video tape recorder to an FM tuner or when recording by connecting a satellite broadcast tuner. Users who connect and enjoy devices are increasing. Hereinafter, the above-described conventional signal selection device will be described with reference to the drawings.

FIG. 2 shows a configuration diagram of a conventional signal selection device. In FIG. 2, 1 is an operation unit having a plurality of buttons, 2 is a tuning control unit, 3 is a tuning memory, up to (memory m1 to mN), 4 is a display memory, 5 is a display drive circuit, Reference numeral 6 denotes a channel display for displaying a channel, 7 denotes a line discrimination circuit, 8 denotes an input switch, 9 denotes a magnetic recording circuit, and 10 denotes an external input terminal.

The operation of the conventional signal selection device configured as described above will be described below.

First, a channel desired to be stored in the channel selection memory 3 is selected with a button of the operation unit 1.

Next, the tuning control unit 2 determines the button pressed on the operation unit 1 and registers the desired channel in the tuning memory 3. A specific pattern (for example, L channel) in the channel selection memory 3 is registered in order to connect to another device for recording and recording. The channel display data to be displayed on the channel display 6 is also written into the tuning memory 3 at the same time.
Next, in order to select a registered channel, first select a channel to be tuned by the operation unit 1 and press a button, the channel selection control unit 2 determines the channel pressed by the operation unit 1, and selects a channel. It decides where in the station memory 3 to read and output to the display memory 4. Next, the display memory 4 operates according to the output information from the channel selection memory 3 and outputs a signal for channel display to the display drive circuit 5. The display drive circuit 5 operates the channel display 6, and the channel display 6 displays the selected channel. On the other hand, the data output from the display memory 4 is compared with the pattern of the tuning memory 3 by the line discriminating circuit 7, and if the pattern is a normal tuning pattern, the input switch 8 is connected to the terminals a and c. Then, a signal from the demodulator 30 is sent to the magnetic recording circuit 9. However, if the pattern is a specific pattern (for example, L channel), the input changeover switch 8 issues a changeover signal and automatically switches the input changeover switch 8 to the connection between b and c.

Therefore, the external input terminal 10 and the magnetic recording circuit 9 are connected, and an audio signal from, for example, an FM tuner connected to the external input terminal 10 can be recorded by the magnetic recording circuit 9.

However, in the above-described configuration, it is necessary to register a specific pattern (for example, L channel) in the tuning memory 3 with the operation unit 1, which makes it difficult for the user to understand. In addition, there is a problem that there is a need to provide an L channel other than the channel in accordance with the increasing trend of the number of channels.

In view of the above problems, the present invention provides a signal selection device in which an external input designation memory is provided separately from a channel selection memory so that a specific pattern (for example, L channel) need not be registered in the channel selection memory. Is what you do.

Means for Solving the Problems In order to solve the above problems, a signal selection device of the present invention includes a tuning memory capable of storing a plurality of channel information of a broadcasting station, an external input designation memory storing a plurality of channel information of an external device, and A tuning control unit that selects the tuning memory and the external input designation memory according to a command from an operation unit and outputs channel information from each memory to a display memory; and a channel display that displays a channel based on information from the display memory. Device, a receiving unit capable of receiving a broadcast station signal, an external input terminal having a terminal corresponding to the number stored in the external input designation memory connectable to an external device, and the receiving unit or the external input terminal. A magnetic recording circuit for recording the signal of the channel, and channel information from the display memory stored in the tuning memory. When the channel information matches the channel information, the signal obtained from the receiving unit is output to the magnetic recording circuit, and the channel information from the display memory does not match any of the channel information stored in the tuning memory. An input changeover switch for switching a signal obtained from the external input terminal to be output to the magnetic recording circuit.

Operation The present invention has the above-described configuration, and the tuning memory (m1 to
mN), an external input designation memory storing a plurality of channel information of the external device is provided. By selecting the external input designation memory on the operation unit, a specific pattern (for example, L channel) in the channel selection memory can be set. It is not necessary to register, and the user can use it easily.

Embodiment Hereinafter, a signal selection device according to an embodiment of the present invention will be described with reference to the drawings.

 FIG. 1 shows the configuration of an embodiment of the present invention.

In FIG. 1, reference numeral 11 denotes an operation unit having a plurality of buttons,
12 is a tuning control unit, and 13 is a tuning memory (memory m1 to m
N), 14 is an external input designation memory (M1), 15 is a channel display for displaying channels, 16 is a display drive circuit, 17
Is a display memory, 18 is a line discrimination circuit, 19 is an input changeover switch, 20 is an external input terminal, and 21 is a magnetic recording circuit.

Regarding the signal selecting device configured as described above,
The operation will be described with reference to the drawings.

First, a channel to be stored in the tuning memory 13 is selected by a button of the operation unit 11.

Next, the tuning control unit 12 determines the button pressed on the operation unit 11 and registers the desired channel in the tuning memory 13. The channel display data to be displayed on the channel display 15 is also written into the tuning memory 13 at the same time. The external input designation memory 14 does not need to register a channel, and is a memory dedicated to a specific pattern (for example, L channel) and cannot register a desired channel like the channel selection memory 13.

Next, to select a registered channel, first select the channel you want to select on the operation unit 11 and press the button.
The channel selected by the operation unit 11 is discriminated by the channel selection control unit 12, and from where in the channel selection memory 13, the channel is read and displayed.
Decide whether to output to 17. Next, the display memory 17 operates according to the output information from the channel selection memory 13 and outputs to the display drive circuit 16 for channel display. The display drive circuit 16 is provided to operate the channel display 15, and the channel display 15 displays a selected channel. On the other hand, the data output from the display memory 17 is compared with the pattern of the tuning memory 13 by the line discriminating circuit 18, and if the pattern is a normal tuning pattern, the input changeover switch 19 is connected to the terminals a and c. And demodulator 30
Is sent to the magnetic recording circuit 21. When recording and recording by connecting to another device, first, when the button (for example, L channel) is pressed on the operation unit 11, the channel selection control unit 12 determines that the channel is the L channel, and reads the external input designation memory 14 Then, display data (for example, L) for displaying the channel is output to the display memory 17. The display memory 17 outputs display data to the display drive circuit 16 and outputs the data to the channel display.
The channel (for example, L) selected at 15 is displayed. On the other hand, the data output from the display memory 17 is compared with the output of the external input designation memory 14 (M1) and the pattern of the tuning memory 13 by a line discrimination circuit 18 to discriminate a specific pattern (for example, L channel). Then, a switch signal is output to the input switch 19, and the input switch 19 is automatically switched so that the terminals b and c are connected. Then, the external input terminal 20 and the magnetic recording circuit 21 are connected, and the audio signal of, for example, an FM tuner connected to the external input terminal 20 can be recorded by the magnetic recording circuit 21. The selection of the external input designation memory 14 (M1) is performed by means of direct selection as described above, and sequentially (for example, 1 channel → 12 channels → L channel → 1 channel...) Following the channels of the channel selection memory 13. You can also choose.

As described above, according to the present embodiment, the external input designation memory 14 is provided separately from the channel selection memory 13, and the selection memory 13
The L channel can be selected at any time without registering a specific pattern (for example, L channel).

Effect of the Invention As described above, according to the present invention, it is not necessary to register a specific pattern (for example, L channel) in the channel selection memory at the operation unit, and it is possible to directly directly select the L channel at any time. Also, by being able to select a station in series, it is possible to obtain an excellent effect that a video tape recorder can be connected to many other devices to enjoy various ways.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 1 is a block diagram showing a conventional signal selection device. 11 operation section, 12 channel selection control section, 13 channel selection memory, 14 external input designation memory, 15 channel display, 16 display drive circuit, 17 display memory, 18 …
... Line discriminating circuit, 19 ... Input selector switch, 20 ... External input terminal, 21 ... Magnetic recording circuit.

Claims (1)

(57) [Claims] 1. A channel selection memory capable of storing a plurality of channel information of a broadcasting station, an external input designation memory storing a plurality of channel information of an external device, and the channel selection memory and the external input designation memory according to a command from an operation unit. And a channel selection control unit that outputs channel information from each memory to a display memory, a channel display that displays a channel based on information from the display memory, a reception unit that can receive a broadcast station signal, An external input terminal connectable to a device and having a terminal corresponding to the number stored in the external input designation memory, a magnetic recording circuit for recording a signal from the receiving unit or the external input terminal, and a channel from the display memory When the information matches one of the channel information stored in the tuning memory, the signal obtained from the receiving section is obtained. To the magnetic recording circuit, and when the channel information from the display memory does not match any of the channel information stored in the tuning memory, a signal obtained from the external input terminal is output to the magnetic recording circuit. A signal selection device, comprising: an input changeover switch for switching to output.