JPH0242829A - Station selecting device - Google Patents

Abstract

PURPOSE:To complete station selection preset with one time of operation and to reduce a cost by providing a channel station selecting means, a station selecting preset means and a memory and controlling the title device with a microcomputer. CONSTITUTION:A station selecting preset means 4 executes the change of a channel, the display change of the channel and the preset of station selection fine control. A microcomputer 6 reloads the contents of a memory 3 by a signal from the means 4 and a channel station selecting means 5 at the time of station selection preset or controls the receiving channel of a tuner and executes the fine control according to the contents of the memory 3 at the time of channel station selection. The microcomputer 6 controls a recording and reproducing circuit 11 of a VTR part 1 and controls changing-over switch 21 of a TV receiver part 2. Thus, in a TV receiver with VTR, since the means 4 and 5 are made as one pair, the station selection preset operation is completed with one time operation and selection for VTR or TV receiver does not hesitate. Further, the cost-increase is suppressed and the cost can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (() Field of Industrial Application) The present invention relates to a channel selection device for a TV (television) receiver with a VTR (video tape recorder).

1) Prior Art Generally, a TV receiver with a VTR is equipped with two sets of tuners and two sets of channel selection devices, as shown in Japanese Patent Publication No. 61-9789 (HO4N5744).

Therefore, a channel selection preset operation is required for each channel selection device, and since there are two sets of channel selection devices, there is a drawback that it is difficult to determine whether the channel selection device is for a VTR or not for a TV receiver/receiver. Furthermore, it may also be a factor in increasing costs.

1. Problems to be Solved by the Invention The present invention has been made in view of the above-mentioned points.
To provide a channel selection device which requires only one channel selection preset operation even if it is a V receiver and does not increase costs.

B) Means for Solving the Problems The channel selection device of the present invention includes a channel selection preset means for presetting a channel, a memory for storing data preset by the channel selection preset means, and a channel selection device for selecting a predetermined channel. g.
7IJ1 and a microcomputer that controls both the second tuner.

(E) Function The @1 and @2 tuners of the present invention are commonly controlled by a microcomputer.

(F) Embodiment Hereinafter, an embodiment in which the present invention is applied to a TV receiver with V'rR will be described with reference to the drawings.

The drawing shows a schematic block diagram of the device of this embodiment.

fil is the tuner for V'rR (lO) and the recording/reproducing circuit (1
1), a VTR section (21 is a TV tuner, a changeover switch (2+1, a video signal processing circuit) and a CRTl
This is a TV receiver section equipped with fi. The TV tuner and ITR tuner are each one-type tuner with a built-in prescaler, PIIL, and band switch, and convert the 4-bit band switch data and the local oscillation frequency of each channel into 14-bit binary data. It is controlled by a total of 18 converted channel and band data signals.

(3) is a memory that is composed of a non-volatile memory that allows EAFLOM (Electrically Exchangeable ROM) and stores the channel data, band data, and fine adjustment of channel selection; (4) is a memory for replacing channels and changing channel display; and a channel selection preset means for presetting the amount of tuning fine adjustment, (5) is a channel selection means, and (6) is a channel selection means for presetting the channel selection means (4) and channel selection means (6) for selecting by signals from Rikishima et al. When presetting a station, the contents of the memory (3) are written down, and when selecting a channel, the contents of the memory (microcomputer C) are used to control the receive channel and the rA'ft of the tuner according to the contents of the memory (31). In addition, this microcomputer (6) also controls the recording/reproducing circuit (
It is also an external input circuit 171i1 which controls the TV receiver section (changeover switch a!1 of 2:).

Next, the channel selection operation in this embodiment will be explained.

When the microcomputer (6) receives a channel switching signal from the channel selection means (6), it calls the channel data of that position from the memory (3) and changes the VT according to its contents.
R tuner: Select the V tuner with lO) or °.

First, when the VTR unit (1) is not in a recording state, two sets of tuners (11 (21) are tuned to the same channel.

Next, when V'l'R section +11 is in the recording state, V'rR
The channel for the VTR tuner (lal is locked, and only the TV tuner can be selected by the channel selection means (5). 10
1 to the receiving channel of the TV tuner.

Further, when the VTR section (1) is in the tape playback state, the two sets of tuners (1 and 1 (A)) are both channel locked, and the channel selection means (5) does not accept the channel switching signal from the others. , changeover switch f21) is controlled to select the output of the recording/reproducing circuit (11). Then, when the system is in a stopped state, the channel lock is released and the selector switch is switched so that the TV tuner output is selected.

Also, when external input is selected, two sets of tuners
O) 121 is channel locked and does not accept channel switching signals.

(G) Effects of the Invention As described above, according to the present invention, in a TV receiver with a VTR, since the channel selection means and the channel selection preset means are one set, the channel selection preset operation only needs to be performed once.
There is no doubt whether it is for a -6-τV receiver. Further significant cost reductions can be achieved.

[Brief explanation of the drawing]

The drawing is a schematic block diagram of a channel selection device in an embodiment of the present invention. (lα... VTR tuner, (4)... TV tuner, (3)... memory, (4)... channel selection preset means, (6)... channel selection means, ( 6)・
...Microcomputer.

Claims (1)

[Claims] (1) In a channel selection device for a television receiver with a video tape recorder, which includes a video tape recorder section having a first tuner and a television receiver section having a second tuner, a channel selection presetting means for presetting a channel. a memory for storing data preset by the channel selection presetting means; a channel selection means for selecting a predetermined channel; A channel selection device comprising a microcomputer that also controls a tuner.