JPH0884301A - Automatic time setting device - Google Patents

Abstract

PURPOSE: To set automatically a channel position for detecting time-casting to a prescribed channel position for detecting time-casting by a channel preset operation. CONSTITUTION: A microcomputer 10 presets channel preset data of an area stored in an area dependent broadcast channel information storage means 5 to a channel position of a channel selection means 2 based on an area code entry by a preset operation means 3. Then channel selection data corresponding to the channel position stored in the time casting detection channel position storage means 4 are fed to a channel selection means 2, which selects a channel and an ON-signal is fed to a time-casting detection means 6, which is activated. When the time-casting detection means 6 detects a time-casting, the time-casting detection means 6 provides an output of a time-casting on-signal and the microcomputer 10 corrects the time of a clock means 3 of a video recording reservation device based on the signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for receiving a television broadcast such as a video tape recorder or a television receiver, which automatically adjusts the time inside the device to the time signal of the television broadcast. The present invention relates to an automatic time setting device capable of setting which channel position of a device is used for time signalling.

[0002]

2. Description of the Related Art When a device such as a video tape recorder (hereinafter referred to as a VTR) or a television receiver for receiving a television broadcast is purchased, the television broadcast channel received by the device is set to the channel position of the device. The operation to set to (called channel preset) is performed. Then, the broadcast channel set in each channel position in this way is selected by selecting the channel position.

Channel presetting methods include (1) an auto-search method in which receivable broadcasts are searched from low-frequency broadcasts and preset automatically from the received broadcasts to the channel position of the device; (2) desired A search method that searches for a broadcast and, if it can be received, presets the desired channel position for each channel position, (3) the desired broadcast channel to be set for the channel position without receiving the broadcast (4) When presetting the channel position of the receiving device to the broadcast channel of the area, the number of channels transmitted by multiple television broadcasting stations that can be received in that area The data for each of the By inputting a code (hereinafter referred to as a region code) designating a range into this receiving device, the data of the television broadcast for each region stored in the receiving device is used to set a broadcasting channel suitable for the region. There is a method of automatically setting regional broadcast channels that are collectively preset to the channel position of.

On the other hand, there is a system (called a G code reservation system) provided by Gemsta, Inc. for timer recording reservation of the VTR. This system
It is a system that attaches a code number (called G code) to each broadcast program and makes timer recording reservation of the VTR by the code number. In order to smoothly perform the channel selection operation in advance, the guide channel is used as the receiving channel of the area. Correspond to the tuning data of and initialize. What is a guide channel?
This is the channel number assigned to the broadcasting station that is the signal supply source. For example, when a signal from a broadcasting station is broadcast on different channels in multiple regions, the broadcast program is managed by the same guide channel number indicating the signal supply source instead of the actual reception channel number. It makes it easy to handle recording reservations based on the program code number. If you purchased a VTR or a television receiver, or if the user changed areas due to moving, etc., there is a receiving channel in that area, so the guide channel should correspond to the receiving channel selection data of that area. Initial setting is required.

Therefore, after the initial setting of the guide channel, the guide channel can be preset to a specific channel position, and the above-mentioned regional broadcast channel can be automatically set using the guide channel. be able to. In fact, a VTR has been developed which divides Japan into a plurality of regions (for example, 65 regions) and automatically sets each broadcast channel and guide channel corresponding to the classified region number.

By the way, conventionally, the VTR has a function of automatic time adjustment. This is a function in which the VTR detects the time signal of television broadcasting and adjusts the clock inside the VTR.

In order to execute this time adjustment function, it is first necessary to initially set which channel position time signal is used for time adjustment. After the initial setting, the time signal is detected at the channel position, and when the time signal is detected, if there is an error within the predetermined time (for example, within 5 minutes) of the VTR, the internal time signal is automatically reported. The operation to match is performed.

As described above, when the user purchases a VTR or a television receiver or changes the area due to a move or the like, in addition to the channel preset, a preset for time signal adjustment is initially set. Had to do as. That is, as shown in FIG. 10, the user presets the channel position of the receiving device to correspond to the broadcast channel of the area (step S1), and then sets the channel position for time signal detection separately (step S1). S2) was necessary. Therefore, there has been a problem that the number of times of setting is increased and the operation is troublesome for the user.

[0009]

As described above, in the conventional receiving device with the automatic time adjustment function, it is necessary to set the channel position for time signal detection in addition to the channel preset when purchasing the device. However, there is a problem that the number of operations is large and the operability is poor.

In view of the above problems, it is an object of the present invention to provide an automatic time adjustment device capable of automatically setting a channel position for time signal detection without setting a channel position for time signal detection. It is what

[0011]

An automatic time setting apparatus according to the invention as set forth in claim 1 has a plurality of channel positions and a channel selection means for receiving a broadcast channel by using channel selection data, and a time signal detection unit. Time signal detection channel position storage means for storing the channel position, preset operation means for presetting a broadcast channel receivable in the area at the channel position, and a channel for time signal detection when a channel preset is made by the preset operation means Time position detection channel position setting means for setting the position to the channel position stored in the time signal detection channel position storage means, means for generating time data, clock means for displaying the time data, and the time data Is the predetermined time of the time signal Means for designating the time signal detecting channel position to the channel selecting means when approaching inside, and time signal detecting means for detecting the time signal when the channel selecting means is receiving the time signal detecting channel And a means for correcting the time of the clock means when the time signal detecting means detects the time signal.

The automatic time adjustment device according to the second aspect of the present invention has a plurality of channel positions, a channel selection means for receiving a broadcast channel using channel selection data, and a plurality of time signal detection for each region. Inputs the time code detection channel position storage means for storing the channel position, the area-specific broadcast channel information storage means for storing the received broadcast channel for each area in association with the channel position to be preset, and the area code Means for setting the broadcast channel of the area stored in the area-specific broadcast channel information storage means to the channel position of the channel selection means by inputting the area code, and the preset means. When a channel preset is made, the time signal detection The time position detection channel position setting means for setting the channel position to the channel position suitable for the area among the time signal detection channel positions of each area stored in the time signal detection channel position storage means, and time data is generated. Means, clock means for displaying the time data, means for designating the time signal detecting channel position to the channel selecting means when the time data approaches within a predetermined time of the time signal time, The station means includes time signal detecting means for detecting the time signal when receiving the time signal detecting channel, and means for correcting the time of the clock means when the time signal detecting means detects the time signal. Characterize.

According to a third aspect of the present invention, a code is attached to each broadcast program in advance, and in an automatic time setting device of a device for making a recording reservation based on this code, it has a plurality of channel positions and selects a broadcast channel. Channel selection means for receiving using station data, time signal detection channel position storage means for storing channel position for time signal detection, preset operation means for presetting a broadcast channel receivable in the area at the channel position, When channel presetting is performed by the preset operation means, the time signal detection channel position setting means for setting the time signal detection channel position to the channel position stored in the time signal detection channel position storage means and time data are generated. Means and the time A clock means for displaying the data, when the time data has approached within a predetermined time of time signal time,
A means for designating the time signal detecting channel position for the channel selecting means, a time signal detecting means for detecting the time signal when the channel selecting means is receiving the time signal detecting channel, and the time signal detecting means. And a means for correcting the time of the clock means when a time signal is detected.

According to a fourth aspect of the present invention, a code is attached to each broadcast program in advance, and in an automatic time setting device of a device for making a recording reservation based on this code, it has a plurality of channel positions and selects a broadcast channel. It presets a channel selection means for receiving using station data, a time signal detection channel position storage means for storing a plurality of time signal detection channel positions suitable for each region, and a reception broadcast channel for each region. Region-specific broadcast channel information storage means for storing in association with a desired channel position, means for inputting a region code, and the region stored in the region-specific broadcast channel information storage means by inputting the region code Preset means for setting the broadcast channel of the channel position of the channel selection means, When the channel is preset by the preset means, the time signal detection channel position is set to the channel position suitable for the region among the time signal detection channel positions stored in the time signal detection channel position storage means. Channel position setting means for time signal detection,
Means for generating time data, clock means for displaying the time data, and designating the time signal detection channel position for the channel selecting means when the time data approaches within a predetermined time of the time signal time. Means, a time signal detecting means for detecting the time signal when the channel selecting means is receiving the time signal detecting channel, and a means for correcting the time of the clock means when the time signal detecting means detects the time signal. Is provided.

According to a fifth aspect of the present invention, in the automatic time setting device according to the third aspect, the preset operating means is means for presetting a guide channel to the channel position by manual setting. .

[0016]

According to the first aspect of the invention, the channel position for time signal detection can be automatically set to the predetermined channel position for time signal detection only by performing the channel preset operation.

According to the second aspect of the present invention, the channel position for time signal detection is automatically set to the channel position for time signal detection suitable for the area only by performing the channel preset operation by the area code. You can

According to the third aspect of the present invention, when G code reservation is possible, there are guide channels 80 (NHK comprehensive) and 90 (NHK education) in any area in Japan. It is also possible to automatically set the channel position where the guide channel is set to the time signal detection position.

According to the fourth aspect of the present invention, the channel position for time signal detection is automatically set to the channel position for time signal detection suitable for the area only by performing the channel preset operation by the area code. You can Moreover, the channel position where the guide channel such as the guide channel 90 (NHK education) is set can be automatically set to the channel position for time signal detection.

According to the fifth aspect of the present invention, when the G code can be reserved, the channel position for time signal detection is automatically set to a predetermined time signal detection channel position by setting the guide channel. can do.

[0021]

EXAMPLES Examples will be described with reference to the drawings. FIG. 1 is a block diagram showing a main part of an embodiment of a recording reservation device to which an automatic time adjustment device according to the present invention is applied.

As shown in FIG. 1, the recording reservation apparatus includes an antenna 1 for receiving a television broadcast, a channel selection unit 2 having a plurality of channel positions and receiving a broadcast channel using channel selection data, A preset operation for presetting the channel position of the channel selection means 2 to broadcast in the region by setting the channel selection data of the received broadcast channel of the region in association with the channel position based on the preset operation such as inputting the region code. Means 3
And a time signal detection channel position storage means 4 for storing a channel position for time signal detection, and a regional broadcast for storing a reception broadcast channel for each area in association with a channel position of a channel selection means 2 to which it is preset. The channel information storage means 5, the time signal detecting means 6 for detecting the time signal based on the audio signal of the selected channel when the channel selecting means 2 selects the time signal detecting channel, and the guide channel (G code). Guide channel input means 8 for inputting (corresponding to reservation), channel position input means 9 for inputting channel position information, microcomputer computer 10 for performing various processing, and guide channel input means 8. Guide channel information and corresponding channel position are stored Guide channel information storage means 11
And a timer reservation information storage means 12 for storing timer reservation data corresponding to a broadcast program code (hereinafter referred to as a G code), and a reservation data is stored in the timer reservation information storage means 12 by inputting a G code. G code reservation setting means 7 for making a program reservation, and time means for displaying the time, and clock means 13 for adjusting the time based on the time signal detection by the time signal detecting means 6, and setting and non-setting of the guide channel. And display means 14 for displaying the timer reservation information.

Area code input by the preset operation means 3, G code input by the G code reservation setting means 7, guide channel information input by the guide channel input means 8 and channel input by the channel position input means 9. The position information is given to the microcomputer 10.

Based on the area code input by the preset operation means 3, the microcomputer 10 sets the channel preset data of the area stored in the area-specific broadcast channel information storage means 5 to the channel position of the channel selection means 2. And preset processing to set the channel position for time signal detection,
Based on the information from the time signal detection channel position storage means 5, the time signal detection channel is designated for the channel selection means 2, and the time of the clock means 13 is corrected based on the time signal detection of the time signal detection means 6 (time signal on). Processing, the processing for performing on / off control of the time signal detection means 6, and the clock means 13
To supply time data, guide channel setting process, G code decoding process, writing and reading the decoded reservation data to and from the timer reservation information storage means 9, and guide channel information storage means 8. The writing and reading processing of data and the tuning processing for giving the tuning data to the tuning means 1 to perform tuning based on the position data from the position input means 6.

In the preset process, when a region code is input in the preset mode, the broadcast channel of the region is corresponded to the channel position of the channel selection unit 2 from the region-specific broadcast channel information storage means 5 based on this code. And set (memorize). Not only channel data but also a guide channel for G code and the like are preset. The entire country of Japan is divided into, for example, 65 areas, and each channel and a guide channel for the G code are automatically set corresponding to the area code classified into each area.

The process of setting the channel position for time signal detection will be described later with reference to FIGS.

Regarding the time signal detection channel designation processing, time correction processing, and time signal detection means on / off processing,
It will be described later with reference to FIG.

In the process of supplying the time data to the clock means 13, the time data is created using the internal clock of the microcomputer 10 and supplied to the clock means 13.

In the guide channel setting process, the channel position for the set guide channel is input and the guide channel and the channel position are associated with each other.

In the G code decoding process, the G code is decoded and reservation data indicated by the G code is generated.

In the writing and reading processing to and from the timer reservation information storage means 12, the generated reservation data is written and read.

In the process of writing and reading data to and from the guide channel information storage unit 11, the channel position input to the guide channel information storage unit 11 corresponding to the guide channel is obtained and the G code decoding process is performed. Read corresponding to the guide channel in the reservation data.

In the channel selection processing, when position data is input from the channel position input means 9, the channel selection data corresponding to the position causes the channel selection means 2 to tune to the broadcast channel set at that position.

The guide channel read from the guide channel information storage means 11 and the corresponding channel position are given to the on-screen display means 14 and displayed on the screen.

A channel position setting process for time signal detection will be described with reference to FIGS.

FIG. 2 shows a flow chart of an embodiment of a channel position setting process for time signal detection.
In this embodiment, the channel preset is performed by setting the area code, and the guide channel 90 (NHK) is used.
The channel position of (education) is set as the channel position of time signal detection.

As shown in FIG. 2, when channel presetting is performed by setting a region code that associates a broadcast channel in the region with the channel position of the device, the guide channel 90 is set in the channel position where NHK education in the region is included. After (step S11), the channel position of the guide channel 90 is automatically set to the channel position for time signal detection (step S12).

According to the present embodiment, NHK education is automatically set to the channel position for time signal detection only by setting the area code, without separately setting the channel position for time signal detection as in the prior art. be able to.

FIG. 3 shows a flowchart of another embodiment of the channel position setting process for detecting the time signal. In this embodiment, the guide channel is manually set, and the channel position of the guide channel 90 is set to the time signal detection channel position.

As shown in FIG. 3, the user manually sets the guide channel when the channel preset of the equipment is made to correspond to the broadcasting channel of the area, and the channel for NHK education of the area is entered. After the guide channel 90 is set to the position (step S21), the channel position of the guide channel 90 is automatically set to the channel position for time signal detection (step S2).
2).

According to the present embodiment, NHK education is automatically set to the channel position for time signal detection only by setting the guide channel without separately setting the channel position for time signal detection as in the prior art. be able to.

FIG. 4 shows a flowchart of another embodiment of the channel position setting process for time signal detection. This embodiment is an example of the case where G code reservation is impossible.

Before shipment (or at the manufacturing stage), the channel position for time signal detection suitable for each region is stored in advance in the time signal detection channel position storage means (for example, 12 positions in Sapporo and 5 positions in Aomori). That way). As shown in FIG. 4, the user presets the channel by the region code setting that corresponds the broadcast channel of the region to the channel position of the device, and after the reception channel of the region is set to the channel position (step S31), The channel position that matches the area that was previously stored is
The channel position for time signal detection is automatically set (step S32).

According to the present embodiment, even if the channel position for time signal detection is not separately set as in the prior art, only by setting the area code, the channel position suitable for the area is automatically detected for time signal detection. Can be set to the channel position of.

According to the embodiments of FIGS. 2 to 4 described above, the user does not need to separately set the channel position for the time signal detection after the channel preset, so that the number of setting items by the user operation is reduced. Operability is improved.

FIG. 5 is a block diagram of the block diagram of FIG. 1 in which a clock for automatically adjusting the internal clock of the recording reservation device is extracted by a time signal.

Referring to FIG. 5, the time signal detection channel designation processing, time correction processing, and time signal detection means on / off processing by the microcomputer will be described. Let channel A be the channel for time adjustment. In order to detect a time signal of 00 minutes every hour, if it is slightly before 00 minutes, for example, about 5 minutes, the channel position set by the time signal detection channel position setting means (ie, the time signal detection channel position storage means 4 is stored). Channel selection data corresponding to the channel position) is supplied to the channel selection means 2 and A
While selecting a channel, an ON signal is sent to the time signal detection means 6 to turn on the time signal detection means 6. At this time, A
An audio signal is sent from the channel selection means 2 to the time signal detection means 6 on the channel. After that, when the time signal detection means 6 detects the time signal, the time signal detection means 6 outputs a time signal ON signal,
Based on this signal, the microcomputer 10 corrects the time of the clock means 13 of the recording reservation device to 00 minutes. Alternatively, for example, if the time signal detection unit 6 is operated for 10 minutes or more but the time signal cannot be detected, the time signal detection unit 6 does not output the time signal ON signal, and the microcomputer 10 assumes that there is no time signal. An off signal is supplied to the time signal detection means 6 to turn it off.

FIG. 6 shows a flowchart of the microcomputer 10 for setting a specific guide channel (corresponding to G code reservation) to a position for time signal detection. Here, for example, the guide channel 90 (NHK
The case where the (education) channel is previously stored in the time signal detection channel position storage means as a time signal detection channel will be described. However, this flowchart is a flow executed when a preset operation is performed in the previous step.

In FIG. 6, the microcomputer 10 is preset in the channel selection means 2 when the clock means 13 reaches a predetermined time before the predetermined time signal time (for example, 5 minutes before 12:00 am). Refer to each channel corresponding to the existing channel position. First, the 1-position guide channel is referred to (step S41). Then, it is judged whether or not the referred guide channel is 90 (step S42). In this step S42, if the guide channel is 90, the position (1
Position) is set to the position for time signal detection (step S43). If the guide channel is not 90 in step S42, the position is shifted by +1 (step S44), and then it is determined whether or not the current position is the maximum position (step S45). In S44, if the maximum position has not been reached, the process returns to step S42 and the steps following S42 are repeated. If it is the maximum position in step S45, it is determined that there is no position for time signal detection (step S46), and the process ends. Therefore, in this flowchart, when there is no position of the guide channel 90, the channel position for time signal adjustment is not set.

Next, the G code reservation operation of the recording reservation apparatus of FIG. 1 will be described with reference to FIGS. 7 and 8. Figure 7
8 is a flowchart showing a guide channel setting operation in the recording reservation apparatus of FIG. 1, and FIG. 8 shows a guide channel setting screen in the recording reservation apparatus of FIG.

Prior to the setting operation of the guide channel, a desired broadcasting station is preset in the channel position of the channel selection means 2 by the above-mentioned preset operation. In the guide channel setting operation, as shown in FIG. 7, the guide channel is input (step S51), and then the channel position corresponding to the guide channel is input (step S52). When setting the guide channel and the channel position, as shown in FIG. 8, the guide channel (GUIDE CH.) And the channel position (TV CH.) Of the channel selection means 2 to which it is assigned are displayed on the screen. For example, if the broadcasting station which is the NHK education (guide channel 90) is preset in the position 3 of the channel selection means 2, when "90" is input by the guide channel input means 8, GUIDE CH. "90" is set to the position of. Next, the position "3" is input by the channel position input means 9, and "3" is set at the position of TV CH.

After the input of the guide channel and the channel position is completed, the guide channel "90" and the corresponding position "3" are stored in the guide channel information storage means 11 (step S53), and the guide channel setting operation is completed. To do.

Next, the reservation processing operation by the G code in the recording reservation apparatus of FIG. 1 will be described with reference to FIG. FIG. 9 is a flowchart showing the reservation processing operation by the G code.

First, the G code is the G code reservation setting means 7
Is input (step S61). The input G code is given to the microcomputer 10, and the microcomputer 10 decodes the G code (step S6).
2).

By decoding the G code, the guide channel and the date / time information are obtained, and whether or not the corresponding guide channel and the corresponding channel position are stored in the guide channel information storage means 11, that is, the guide channel It is determined whether or not the setting is made (step S63). When the corresponding guide channel is set, the channel position corresponding to the same guide channel stored in the guide channel information storage means 11 is read out, and this channel position is displayed on the screen as the reservation data together with the date / time information ( In step S64, the reservation data is further stored in the timer reservation information storage means 12 (step S64).
65). After storing the reservation data, the G code reservation process is completed.

On the other hand, in step S63, when the corresponding guide channel is not set, it is displayed on the screen that the guide channel is not set (step S66), and the G code is set without setting the reservation data. The reservation process ends.

In the above description, the case of performing the channel preset operation by inputting the area code has been described, but the preset method in the present invention is not limited to the area code, and a normal search type channel preset is used. It may be.

Further, in the above description, the time signal detection channel position storage means 4 has been described so as to store a predetermined channel position convenient for time signal detection in the storage means before shipment. In the invention, the present invention is not limited to this, and when the area code input is used as the preset operation means 3, a plurality of time signal detection channel positions suitable for each area are stored in advance in the time signal detection channel position storage means 4. Alternatively, one time signal detection channel position suitable for the region may be automatically set at the same time that the channel preset is executed by inputting the region code.

[0059]

According to the present invention as described above,
By only performing channel presetting, it is possible to automatically set the position for time signal detection without separately setting the position for time signal detection, thus improving the operability for the user.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a recording reservation device to which an automatic time adjustment device according to the present invention is applied.

FIG. 2 is a flowchart of an embodiment of a channel position setting process for time signal detection in the apparatus of FIG.

FIG. 3 is a flowchart of another embodiment of a channel position setting process for time signal detection in the apparatus of FIG.

FIG. 4 is a flowchart of another embodiment of the channel position setting process for time signal detection in the apparatus of FIG.

FIG. 5 is a block diagram in which a block for automatically adjusting the time of the internal clock of the recording reservation device according to the time signal is extracted from the block diagram of FIG. 1.

6 is a flowchart for setting a specific guide channel to a channel position for time signal detection in the apparatus of FIG.

7 is a flowchart showing a guide channel setting operation in the apparatus of FIG.

8 is a diagram showing a guide channel setting screen in the apparatus of FIG.

9 is a flowchart showing a reservation processing operation by a G code in the apparatus of FIG.

FIG. 10 is a flowchart showing a channel position setting process for time signal detection in a conventional device.

[Explanation of symbols]

 2 ... Channel selection means 3 ... Preset operation means 4 ... Time signal detection channel position storage means 5 ... Regional broadcast channel information storage means 6 ... Time signal detection means 7 ... G code reservation setting means 8 ... Guide channel input means 9 ... Channel position input Means 10 ... Microcomputer 11 ... Guide channel information storage means 12 ... Timer reservation information storage means 13 ... Clock means 14 ... Display means

Claims (5)

[Claims] 1. A channel selection means having a plurality of channel positions for receiving a broadcast channel using channel selection data, a time signal detection channel position storage means for storing a channel position for time signal detection, and the channel position. A preset operation means for presetting a broadcast channel receivable in that area, and a channel position for time signal detection when the channel preset by this preset operation means is performed, is stored in the time signal detection channel position storage means. Time signal detection channel position setting means for setting the position, means for generating time data, clock means for displaying the time data, and the channel selection when the time data approaches within a predetermined time of the time signal time. The means for detecting the time signal Means for designating a channel position, a time signal detecting means for detecting a time signal when the channel selecting means is receiving a time signal detecting channel, and a time for the clock means when the time signal detecting means detects the time signal. An automatic time adjustment device comprising: 2. A channel selection means having a plurality of channel positions for receiving a broadcast channel using channel selection data, and a time signal detection channel position storage for storing a plurality of channel positions for time signal detection suitable for each region. Means, area-specific broadcast channel information storage means for storing the received broadcast channel for each area in association with the channel position at which it is preset, means for inputting an area code, and the area code is input By this means, preset means for setting the broadcast channel of the area stored in the area-based broadcast channel information storage means to the channel position of the channel selection means, and when the channel preset by the preset means is made, for time signal detection The channel position is set to the channel for detecting the time signal. Time signal detection channel position setting means for setting the time signal detection channel position of each area stored in the position storage means to a channel position suitable for the area, means for generating time data, and display of the time data Clock means, means for designating the time signal detection channel position to the channel selection means when the time data approaches within a predetermined time of the time signal time, and the channel selection means for setting the time signal detection channel. An automatic time adjustment device comprising: a time signal detecting means for detecting a time signal during reception, and a means for correcting a time of the clock means when the time signal detecting means detects the time signal. 3. An automatic time adjustment device, which is pre-assigned with a code for each broadcast program and which reserves recording based on this code, has a plurality of channel positions and receives broadcast channels using tuning data. Channel selection means, a time signal detection channel position storage means for storing a channel position for time signal detection, a preset operation means for presetting a broadcast channel receivable in the area at the channel position, and a channel preset by the preset operation means. When is done, the channel position for time signal detection,
Time signal detection channel position setting means for setting the channel position stored in the time signal detection channel position storage means, means for generating time data, clock means for displaying the time data, and the time data being time signal time Means for designating the time signal detection channel position to the channel selection means when approaching within a predetermined time, and detecting the time signal when the channel selection means is receiving the time signal detection channel An automatic time setting device comprising: time signal detecting means; and means for correcting the time of the clock means when the time signal detecting means detects a time signal. 4. An automatic time adjustment device, which is pre-assigned with a code for each broadcast program, and which makes a recording reservation based on this code, has a plurality of channel positions and receives a broadcast channel using tuning data. Channel selection means, a time signal detection channel position storage means for storing a plurality of time signal detection channel positions suitable for each region, and a received broadcast channel for each region are associated with a channel position at which it should be preset. Area-specific broadcast channel information storage means, means for inputting a area code, and selecting the broadcast channel of the area stored in the area-specific broadcast channel information storage means by inputting the area code. Preset means to set the channel position of the station means, and this preset hand When the channel preset for the time signal is made, the time signal detection channel position is set to a channel position suitable for the region among the time signal detection channel positions of each region stored in the time signal detection channel position storage means. Channel position setting means, means for generating time data, clock means for displaying the time data, and when the time data approaches within a predetermined time of the time signal time, the time signal is sent to the channel selecting means. Means for designating a detection channel position, time signal detection means for detecting a time signal when the channel selection means is receiving a time signal detection channel, and time means for detecting the time signal when the time signal detection means detects the time signal An automatic time setting device comprising means for correcting the time. 5. The automatic time setting device according to claim 3, wherein said preset operation means is means for presetting a guide channel to said channel position by manual setting.