JPH09128840A - Video recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to easily record television broadcasting programs and the character information programs of FM multiplex broadcasting at the time of broadcasting these television broadcasting programs with one recording medium. SOLUTION: The character information is fetched in an FM multiplex data receiving section 5 from the FM radio broadcasting sound signals selected in an FM radio broadcasting channel-selection section 3 and detected in a sound detecting circuit 42 and the image signals thereof are recorded for the prescribed time on a magnetic tape in a recording section 7 when 30 seconds before the video recording 'start time' and 'end time' of television broadcasting come in reserved video recording. The intermediate frequency signals outputted from the television broadcasting channel- selection section 1 are processed in an amplifier circuit 21, a video detecting circuit 22 and the sound detecting circuit 42. The video signals and sound signals of the television broadcasting are then supplied to the recording section 7 and the recorded on the magnetic tape until the 'end time' comes. The condition at the time of video recording is vividly sensed by the images of the character information program and the recorded television broadcasting programs appear more powerful at the time of reproducing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording device. Specifically, from the first set time to the second set time, the video signal and the audio signal of the television broadcast are recorded in the recording medium, and either before or after the first set time or after the second set time. On the other hand, the FM is recorded on the recording medium for a predetermined time.
By providing a mode for recording the image signal of the multiplex broadcast, the TV broadcast program and the F
The present invention relates to a recording device capable of easily recording a character information program of M multiplex broadcast on one recording medium.

[0002]

2. Description of the Related Art Conventionally, a home-use video tape recorder (hereinafter referred to as "VTR") is used for timer recording of television broadcasting and recording and reproduction of so-called back programs other than the television broadcasting program being watched. Often.

[0003]

By the way, if a tape recorded with a television broadcast program on a VTR has recorded therein the television broadcast program and the social situation at the time of recording, for example, the social trend and economic situation, the reproduction is performed. Sometimes the situation at the time of recording is felt vividly, and the power of the recorded TV broadcast program is further increased.

As a source of the social situation recorded on such a magnetic tape, a character information program such as news of FM multiplex broadcasting, sports information, weather forecast, traffic information and entertainment information is very suitable.

Further, when it is desired to record a radio broadcast with a timer or the like, a VTR for recording a television broadcast and a recording device for the radio broadcast must be separately set with a timer, and the respective reproduction operations must be performed during the reproduction. It is troublesome. Even when playing back a recorded radio broadcast, if there are some images, it is possible to enjoy the program with your eyes and ears, which is considered to be very convenient. Could not be recorded.

Therefore, according to the present invention, there is provided a recording apparatus which can easily record a television broadcast program and a character information program of FM multiplex broadcasting or a voice and character information of FM multiplex broadcasting at the time of broadcasting the television broadcast program on one recording medium. It is provided.

[0007]

SUMMARY OF THE INVENTION A recording apparatus according to the present invention includes a television broadcasting channel selecting section for mixing a television broadcasting signal and a first local oscillation signal to output a television intermediate frequency signal, and a television intermediate frequency signal. A video intermediate frequency amplifier circuit for extracting a second audio intermediate frequency signal from the included video intermediate frequency signal and audio intermediate frequency signal and for amplifying the video intermediate frequency signal, and detecting the video intermediate frequency signal and outputting it as a video signal. The video detection circuit, the first audio detection circuit for detecting the audio second intermediate frequency signal and outputting it as a television broadcast audio signal, the FM multiplex broadcast signal and the second local oscillation signal are mixed, and the FM radio intermediate signal is mixed. An FM radio broadcasting channel selection section for outputting a frequency signal, a second audio detection circuit for detecting an FM radio intermediate frequency signal and outputting it as an FM radio broadcasting audio signal, and an FM radio An FM multiplex data receiving unit for extracting a multiplex data signal from a transmission audio signal and outputting an image signal for displaying character / graphic information by the multiplex data signal, and recording a video signal, a television broadcast audio signal and an image signal on a recording medium. And a recording unit for recording the video signal and the television broadcast audio signal on the recording medium from the first set time to the second set time, and before and after the first set time and the second set time. After that, a mode for recording the image signal on the recording medium by the recording unit is provided for a predetermined time of both or either of them.

In the recording apparatus according to the present invention, the video signal and the audio signal related to the television broadcast program are recorded in the recording medium by the recording section from the first set time to the second set time, and the recording medium is set to the first set time. The image signal related to the character information program of the FM multiplex broadcast is recorded by the recording unit before and / or after the first set time and the predetermined time.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of a video tape recorder as an embodiment. The video tape recorder 10 shown in FIG. 1 includes a television broadcast channel selection unit 1, a video reception unit 2 and an F
A microcomputer (hereinafter, referred to as "microcomputer") that constitutes the M radio broadcasting channel selection unit 3, the audio reception unit 4, the FM multiplex data reception unit 5, the recording signal processing unit 6, the recording unit 7, the reproduction signal processing unit 8 and the system controller. Have nine.

The television broadcasting channel selection unit 1 includes a high frequency amplifier circuit 1.
1 and a local oscillation circuit 12 and a television broadcast mixing circuit 13 that form a frequency conversion circuit.

The high frequency amplifier circuit 11 is supplied with the high frequency television broadcast signal S _TVB captured by the television broadcast receiving antenna AT _TV . In the high frequency amplifier circuit 11, only the signal in the band corresponding to the desired channel is selected by tuning from the television broadcast signal S _TVB supplied from the antenna AT _TV . The selected signal (hereinafter, referred to as “television channel signal”) S _TCH is amplified to a level required for the processing of the next stage and supplied to the mixing circuit 13. The tuning frequency is controlled by the microcomputer 9.

When the local oscillator circuit 12 is set to receive a television broadcast, it has a frequency higher by 58.75 MHz than the video carrier frequency of the television channel signal S _TCH selected by the high frequency amplifier circuit 11. The local oscillation signal S _TLO is output. For example, when the desired channel is one channel, the frequency f _TLO of the local oscillation signal output by the local oscillation circuit 12 is 150.0 MHz. The oscillation frequency is controlled by the microcomputer 9.

The mixing circuit 13 is supplied with the television channel signal S _TCH from the high frequency amplifier circuit 11 and the local oscillation signal S _TLO (frequency f _TLO ) from the local oscillation circuit 12 to mix both signals. Then, from the mixing circuit 13, only the signal having the frequency of the difference between the two signals is taken out by the resonance circuit arranged at the output part thereof, and this is supplied to the video receiving part 2 as the television intermediate frequency signal S _TIF .

The image receiving section 2 includes an image intermediate frequency amplifier circuit 2
1 and a video detection circuit 22.

The video intermediate frequency amplifier circuit 21 receives a TV intermediate frequency signal S _TIF (58.75M) from the TV broadcasting channel selection unit 1.
The video intermediate frequency signal of Hz and the audio intermediate frequency signal of 54.25 MHz) are supplied and amplified. The amplified video intermediate frequency signal S _VIF is supplied to the video detection circuit 22 and A
The video signal SV that has been subjected to M detection processing and extracted by this AM detection processing is supplied to the fixed terminal on the a side of the changeover switch SW1.

Further, in the video intermediate frequency amplifier circuit 21, the above-mentioned television intermediate frequency signal S _TIF is amplitude-detected, and the audio second intermediate frequency signal S having an audio carrier frequency of 4.5 MHz.
_2IF (difference signal between video intermediate frequency signal and audio intermediate frequency signal) is taken out. The extracted audio second intermediate frequency signal S _2IF is supplied to the fixed terminal on the d side of the changeover switch SW2.

The FM radio broadcast channel selection unit 3 includes a high frequency amplifier circuit 31, a frequency divider 32, and an FM radio broadcast mixing circuit 33.
And

The high frequency amplifier circuit 31 is supplied with the high frequency FM radio broadcast signal S _FMB captured by the FM radio broadcast receiving antenna AT _FM . In the high frequency amplifier circuit 31, only the signal in the band corresponding to the desired channel is selected by tuning from the FM radio broadcast signal S _FMB supplied from the antenna AT _FM . The selected signal (hereinafter referred to as “FM channel signal”) S _FCH is amplified to a level required for the processing of the next stage and supplied to the mixing circuit 33. The tuning frequency is controlled by the microcomputer 9.

The frequency divider 32 is a station of the TV broadcasting channel selection unit 1.
Local oscillation signal S from local oscillation circuit 12 _TLO(Frequency f_TLO)
Is supplied and the frequency is divided in half. This divided signal S_DEM
(Frequency f_TLO/ 2) is supplied to the mixing circuit 33. This
In the case of, the local oscillation signal output from the local oscillation circuit 12
Frequency is set to receive FM radio broadcasts
The divided signal S_DEMFrequency is FM channel
Signal S_FCH4.5 MHz lower than the carrier frequency of
It is controlled by the microcomputer 9 so that
You. For example, the desired FM channel signal S_FCHCarrier wave
When the frequency is 82.5 MHz, the divided signal S_DEMof
The frequency will be 78.0MHz or 87.0MHz
Local frequency of 156MHz or 174MHz
The vibration signal is output from the local oscillation circuit 12.

The mixing circuit 33 is supplied with the FM channel signal S _FCH from the high frequency amplifying circuit 31 and also has a frequency divider 3
The frequency- _divided signal S _DEM as the second frequency signal is supplied from 2 to mix both signals. Then, from the mixing circuit 33, only the signal of the frequency of the difference between the two signals is taken out by the resonance circuit arranged at the output part thereof, and this is fixed as the FM radio intermediate frequency signal S _FIF on the e side of the changeover switch SW2. Supplied to the terminal.

In this way, the audio second intermediate frequency signal S output from the image intermediate frequency amplifier circuit 21 of the image receiving unit 2
_2IF is supplied to the fixed terminal on the d side of the changeover switch SW2, and the FM radio intermediate frequency signal S _FIF output from the mixing circuit 33 is supplied to the fixed terminal on the e side of the changeover switch SW2.

The voice receiving unit 4 includes a voice intermediate frequency amplifier circuit 4
1 and a voice detection circuit 42.

The audio intermediate frequency amplifier circuit 41 has a frequency of 4.5 MHz.
It has a band pass filter of. The audio intermediate frequency amplifier circuit 41 includes a movable terminal f of the changeover switch SW2.
The audio second intermediate frequency signal S _2IF or the FM radio intermediate frequency signal S _FIF is supplied, subjected to band limiting processing and amplification processing, and the intermediate frequency signal SIF is extracted.

The intermediate frequency signal SIF extracted by the intermediate sound frequency amplifying circuit 41 is supplied to the sound detecting circuit 42 to perform FM detection processing. The audio signal SA extracted by this FM detection processing is processed by the FM multiplex data receiving unit 5
And is supplied to the recording unit 7 via an audio signal processing unit (not shown).

The switching operation of the changeover switch SW2 is controlled by the microcomputer 9. The movable terminal f of the changeover switch SW2 is connected to the fixed terminal on the d side when set to receive the television broadcast, and the movable terminal f when set to receive the FM radio broadcast.
Is connected to the fixed terminal on the e side.

The microcomputer 9 has a built-in memory, and the key operation unit 16 and the clock circuit 1 for obtaining the data of the current time.
7 is connected. The settings for TV broadcast reception and F
The setting for receiving the M radio broadcast is performed by the user operating the key operation unit 16 or a transmitter for remote control (not shown).

The FM multiplex data receiving section 5 includes an FM multiplex data demodulation circuit 51 and a RAM (random access memory).
52 and an on-screen display circuit (hereinafter referred to as “OSD circuit”) 53 for outputting character / graphic information and other image information.

The reproduced signal processing section 8 includes a reproduced signal amplifier circuit 8
1, a high-pass filter 82, and a low-pass filter 83
A frequency demodulation circuit 84 and a high frequency conversion circuit 85
And a Y / C mixing circuit 86.

The reproduction signal amplifier circuit 81 includes a magnetic head 7
The reproduction signal of the magnetic tape reproduced in 1 is the changeover switch S
It is supplied from the fixed terminal on the h side of W3 and amplified to a level required for the subsequent processing.

The high pass filter circuit 82 is supplied with the reproduction signal amplified by the reproduction signal amplifying circuit 81 and takes out the FM modulated luminance signal. Further, the reproduction signal amplified by the reproduction signal amplification circuit 81 is supplied to the low-pass filter circuit 83, and the low-pass conversion color signal is extracted.

The frequency demodulation circuit 84 is supplied with the FM modulated luminance signal from the high pass filter circuit 82 and demodulated. Further, a low-pass conversion color signal is supplied from the low-pass filter circuit 83 to the frequency high-pass conversion circuit 85, and the color carrier frequency is frequency-converted into a color signal having a frequency of 3.58 MHz.

The Y / C mixing circuit 86 includes a luminance signal output from the frequency demodulation circuit 84 and a frequency high frequency conversion circuit 85.
The color signal output from the above is supplied and mixed. RF
In the converter 15, the movable terminal k of the switch SW4 is j
By being connected to the fixed terminal on the side, the reproduced video signal is supplied from the Y / C mixing circuit 86 and converted into a television broadcast signal corresponding to, for example, 1 channel or 2 channels. The converted TV broadcast signal is connected to the antenna input terminal of the TV receiver.

Hereinafter, a case where the FM radio broadcast selected by the FM radio broadcast selection unit 3 is a multiplex broadcast will be described.

The FM multiplex data demodulation circuit 51 includes an FM radio broadcast audio signal SA extracted by the audio detection circuit 42.
_F (FM composite signal) is supplied and frequency 54
components below kHz (main channel signal, sub-channel signal,
A voice signal such as a pilot signal) is removed and only the multiplex data signal S _MD having a center frequency of 76 kHz is extracted. Further, the multiplex data signal S _MD is subjected to digital demodulation processing and error correction processing to extract digital data.

Digital data demodulated by the FM multiplex data demodulation circuit 51 is stored in the RAM 52 under the control of the microcomputer 9.

The OSD circuit 53 is supplied with the digital data stored in the RAM 52 under the control of the microcomputer 9. When the user operates the key operation unit 16 or the remote control transmitter to receive the character / graphic information, the microcomputer 9 determines the identification number added to the digital data. OS only digital data of the set program
It is supplied to the D circuit 53.

The OSD circuit 53 forms an image signal for displaying the character / graphic information based on the digital data of the FM multiplex broadcast program read from the RAM 52. This image signal is supplied to the fixed terminal on the b side of the switch SW1.

When it is set to receive the character information program, the movable terminal c of the switch SW1 is connected to the fixed terminal on the side b, and the image signal S _CHR is sent to the OSD circuit 53.
It is supplied to the recording signal processing unit 6 and the fixed terminal on the 1 side of the switch SW4.

The switch SW4 has a fixed terminal on the 1 side for inputting a video signal or an image signal and a j side for inputting a reproduction signal to be described later, and its switching operation is controlled by the microcomputer 9. That is, when monitoring the received signal, the movable terminal k is connected to the fixed terminal on the l side,
When reproducing the recorded signal, the movable terminal k is connected to the fixed terminal on the j side. As a result, the RF converter 15
To each signal.

The recording signal processing unit 6 includes a Y / C separation circuit 61.
A frequency modulation circuit 62 and a frequency low frequency conversion circuit 63
, A Y / C mixing circuit 64, and a recording signal amplifying circuit 65.

The Y / C separation circuit 61 includes a changeover switch S.
Video signal SV or F of TV broadcast from the movable terminal c of W1
An image signal S _CHR of M multiplex broadcasting is supplied. The Y / C separation circuit 61 is configured to have a comb filter or a bandpass filter that passes only a signal near 3.58 MHz, and the video signal SV or the image signal S _CHR is separated into a luminance signal and a chrominance signal. To be done.

A luminance signal is supplied from the Y / C separation circuit 61 to the frequency modulation circuit 62 and is FM-modulated. The low frequency conversion circuit 63 is supplied with a color signal having a frequency of 3.58 MHz from the Y / C separation circuit 61 and converted into a low frequency signal of approximately 0.7 MHz.

In the Y / C mixing circuit 64, the luminance signal FM-modulated by the frequency modulation circuit 62 and the frequency low frequency conversion circuit 6 are included.
The color signal converted into the low-frequency signal in 3 is supplied and mixed. The recording signal amplifier circuit 65 has a Y / C
A mixed signal is supplied from the mixing circuit 6 and amplified to a level optimum for recording on the magnetic tape. This amplified signal is output to the fixed terminal g of the changeover switch SW3.

In the above configuration, when the setting for receiving the television broadcast is made, the local oscillation signal for the television channel selected by the key operation is transmitted by the local oscillation circuit 1.
2 is supplied to the mixing circuit 13. The television intermediate frequency signal output from the mixing circuit 13 is supplied to the image intermediate frequency amplifier circuit 21 of the image receiving unit 2. The audio second intermediate frequency signal output from the video intermediate frequency amplifier circuit 21 is supplied to the fixed terminal on the d side of the changeover switch SW2. At this time, the movable terminal f of the changeover switch SW2 is connected to the fixed terminal on the d side, and the audio second intermediate frequency signal is supplied to the audio receiving unit 4. As a result, the audio signal of the selected television broadcast program is supplied from the audio detection circuit 42 of the audio receiving unit 4 to the recording unit 7. On the other hand, the video signal output from the video detection circuit 22 of the video receiver 2 is supplied to the fixed terminal on the side a of the changeover switch SW1. At this time, the movable terminal c of the changeover switch SW1 is connected to the fixed terminal on the a side, and the video signal is supplied to the recording signal processing unit 6. This video signal is converted into a recording signal by the recording signal processing unit 6.

When the FM radio broadcast is set to be received, the FM selected by the key operation unit 16 is selected.
The local oscillation signal for the channel is output from the local oscillation circuit 12, frequency-divided by the frequency divider 32, and supplied to the mixing circuit 33. The FM radio intermediate frequency signal output from the mixing circuit 33 is supplied to the fixed terminal on the e side of the changeover switch SW2. At this time, the movable terminal f of the changeover switch SW2 is connected to the fixed terminal on the e side, and the FM radio intermediate frequency signal is supplied to the audio receiving unit 4. As a result, the selected FM radio broadcast audio signal is transferred from the audio detection circuit 42 to the recording unit 7.
Supplied to The audio signal output from the audio detection circuit 42 is also supplied to the FM multiplex data receiving section 5.
When the selected FM radio broadcast is a multiplex broadcast and is set to receive the character information program, the image signal of the character information of the character information program is transmitted from the FM multiplex data receiving unit 5 to the changeover switch SW1. Is supplied to the fixed terminal on the b side. At this time, the movable terminal c of the changeover switch SW1
Is connected to the fixed terminal on the b side, and the image signal of the character / graphic information of the character information program is supplied to the recording signal processing unit 6. This image signal is converted into a recording signal by the recording signal processing unit 6.

When the recording mode is set or when the reserved recording mode setting described later is set and the recording time comes, the movable terminal i of the changeover switch SW3 is controlled by the microcomputer 9 and connected to the fixed terminal g. To be done.
Therefore, the output signal of the recording signal amplifier circuit 65 as a recording signal is supplied to the magnetic head 71 of the recording unit 7 and recorded on the magnetic tape.

On the other hand, when the reproduction mode is set, the video signal recorded on the magnetic tape is transferred to the magnetic head 71.
Is reproduced and supplied to the movable terminal i of the switch SW3. At this time, the movable terminal i of the changeover switch SW3
Is controlled by the microcomputer 9 and connected to the fixed terminal h, and the reproduction signal reproduced by the magnetic head 71 is supplied to the reproduction signal processing unit 8.

The key operation unit 16 and the remote control transmitter are set to the above-mentioned "recording mode", "reserved recording mode" for recording a broadcast program at a set time, and "reproduction mode", respectively. Each selection button is provided.

Each time the "reserved recording mode" selection button is pressed, it is cyclically switched to the following three modes, which are subordinate modes, and the mode for canceling the "reserved recording mode".

A mode for recording the television broadcast of the set channel from the set recording start time to the recording end time (hereinafter referred to as "TV recording mode") from the recording start time as the first set time to the second set time. The mode that records the TV broadcast of the set channel until the recording end time of, and records the character information program of FM multiplex broadcast before and after the recording of the TV broadcast (hereinafter referred to as "TV & character information recording mode"). From the start time to the recording end time, record and record the character information program and audio of FM multiplex broadcasting on the set channel.
Recording mode (hereinafter referred to as "character information recording mode") In the "recording mode", the above three modes can be selected by the selection button. If you select "TV & Character Information Recording Mode", press F before recording the TV broadcast in response to pressing the recording start button.
While recording the character information program of M multiplex broadcasting for a predetermined time,
After the recording of the television broadcast is completed in response to the pressing of the recording end button, the character information program of the FM multiplex broadcast is recorded for a predetermined time.

The recording start time in each of the above modes,
The selection for setting the recording end time, the broadcast channel, the FM multiplex broadcast program, and the like are all performed by key operations of the key operation unit 16 and the remote control transmitter.

When the "reservation recording mode" is set to the "TV & character information recording mode" by a key operation, the microcomputer 9 controls the operation of the system according to the flowchart of FIG.

The operation in the "TV & character information recording mode" will be described below with reference to FIG.

By operating the keys on the key operation unit 16 or the transmitter for remote control, the user can set the channel, the recording start time,
Enter the recording end time, the channel of the FM text information program to be recorded before and after the TV broadcast, etc.
When the selection button is pressed once, the "TV & character information recording mode" is set and the video tape recorder 10 is turned off.

In FIG. 2, first, in step ST1, the current time data output from the clock circuit 17 and the recording start time of the television broadcast as the first set time stored in the internal memory of the microcomputer 9 (hereinafter, The data is simply referred to as "start time") and it is determined whether "30 seconds before" the "start time". This judgment is
The process is repeated until the current time is “30 seconds before” the start time.

When it is determined in step ST1 that "30 seconds before" the "start time", the process proceeds to step ST2, in which the power of the FM radio broadcasting channel selection unit 3 is turned on and the FM radio broadcasting channel set is set. With the start of tuning
The movable terminal f of the switch SW2 is connected to the fixed terminal on the e side, and the process proceeds to step ST3. The time "30 seconds ago" can be freely changed by the user by operating the keys.

In step ST3, the setting F subjected to digital demodulation processing and error correction processing in the multiplex data demodulation circuit 51 is performed.
RAM for digital data relating to character information of M channel
The storage in 53 is started and the process proceeds to step ST4.

In step ST4, the magnetic tape loaded in the recording unit 7 is loaded in order to prevent the recording from being cut off, and the process proceeds to step ST5.

In step ST5, it is determined whether or not the storage of all the digital data of the channel of the character information program channel-designated by the key operation in the RAM 52 is completed. This determination is repeated until the storage in the RAM 53 is completed. If it is determined that the storage is completed, the process proceeds to step ST6.

In step ST6, the movable terminal c of the switch SW1 is connected to the fixed terminal on the b side, and the OSD circuit 53 is connected.
The image signal relating to the designated character information program output by the above is supplied to the recording signal processing unit 6. The recording signal processing unit 6 starts recording the image signal converted into the recording signal, starts counting the elapsed time from the start time, and proceeds to step ST7.

Here, the character information of the FM multiplex broadcasting is one program (for example, news & sports etc.) and is 15 full-width characters.
It is considered that there are 30 pages of information with 2 lines of character * 1 as one page, and 10 to 20 lines can be displayed on one screen on the monitor screen, so that there are 3 to 6 screens. If each screen has 3 seconds, all the character information of one character information program can be recorded in a maximum of 18 seconds.

In step ST7, the determination as to whether or not 3 seconds has elapsed from the recording start time of the character information in step ST6 is repeated, and the information for 5 to 10 pages of the FM multiplex broadcast program is displayed on the screen on the magnetic tape. Will be recorded. If it is determined that 3 seconds have elapsed, the process proceeds to step ST8.

In step ST8, it is determined whether or not there is a next screen in the character information, and if there is a next screen, step ST8.
After proceeding to step 9 and updating the screen of the next character information, the procedure returns to step ST7.

When it is determined in step ST8 that there is no next screen, the process proceeds to step ST10 to control the recording unit 7 to temporarily suspend (pause) the recording, and the process proceeds to step ST11.

In step ST11, the current time data output from the clock circuit 17 is compared with the "start time" stored in the internal memory of the microcomputer 9 to determine whether or not the "start time" has been reached. . This determination is repeated until the current time reaches the “start time”.

When it is determined in step ST11 that the current time has reached the "start time", the process proceeds to step ST12, the FM radio broadcast channel selection is stopped, and the TV broadcast channel selection 1
To start tuning the set channel.

In step ST12, the switch SW
The movable terminal c of No. 1 is connected to the fixed terminal on the a side to supply the video signal of the TV broadcast selected by the TV broadcast tuning unit 1 to the recording signal processing unit 6, and the movable terminal f of the switch SW2 is connected to the d side. The audio detection circuit 42 outputs the audio signal of the TV broadcast selected by the TV broadcast selection unit 1 to the recording unit 7 through the audio signal processing unit (not shown) by connecting to the fixed terminal of the.

Then, in step ST13, the recording unit 7 starts recording the video signal of the television broadcast program converted into the recording signal by the recording signal processing unit 6, and proceeds to step ST14.

In step ST14, the current time data output from the clock circuit 17 and the recording end time of the television broadcast as the second set time stored in the built-in memory of the microcomputer 9 (hereinafter referred to simply as "end time"). ) Data is compared and whether or not the "end time" is reached is repeated until that time is reached. When it is determined that the current time has reached the “end time”, the process proceeds to step ST15.

In step ST15, the recording of the television broadcast in the recording section 7 is temporarily interrupted, and the process proceeds to step ST16. Note that FIG. 3 shows an example of the contents of the magnetic tape recorded by the above steps.

In step ST16, the television broadcast channel selection section 1 stops the television broadcast channel selection. Further, step S
Similar to T2, the power of the FM radio broadcasting channel selection unit 3 is turned on to restart channel selection of the set FM radio broadcasting channel, and the movable terminal f of the switch SW2 is connected to the fixed terminal on the e side. And proceeds to step ST17.

In step ST17, as in step ST3, the RAM 53 for the digital data of the character information program is provided.
To the step ST18.

In step ST18, similarly to step ST5, it is determined whether or not the storage of the digital data of the designated character information program in the RAM 52 is completed. This determination continues until the storage in the RAM 52 is completed, and when it is determined that the storage is completed, the process proceeds to step ST19.

In step ST19, as in step ST6, the movable terminal c of the switch SW1 is connected to the fixed terminal on the side b, the OSD circuit 53 outputs character information, and the signal is supplied to the recording signal processing section 6. The recording of the designated character information program is restarted by the recording unit 7, and the counting of the elapsed time from the recording restart time is started as in step ST6, and the process proceeds to step ST20.

In step ST20, as in step ST7, it is determined whether or not 3 seconds have elapsed from the recording restart time of the character information in step ST18. While this determination is repeated, information on the same screen is recorded on the magnetic tape. If it is determined that 3 seconds have elapsed, step ST
In step 21, it is determined whether or not there is a next screen in the character information. If there is a next screen, the process proceeds to step ST22, where the screen for the next character information is updated as in step ST9, and then to step ST20. Return. As a result, the character information of 30 pages of one program is set to 3 pages with 15 characters * 2 lines as one page.
~ 6 screens can be recorded.

If it is determined in step ST21 that there is no next screen, the process proceeds to step ST23 to control the recording unit 7 to end the recording on the magnetic tape and turn off the power of the FM radio broadcasting channel selection unit 3. Cancel the FM radio broadcast channel selection.

Next, an example of the menu display in this embodiment is shown in FIG. In this mode, "reserved recording mode"
In, when each setting is performed by operating the key operation unit, the setting is displayed on the screen of the monitor.

As shown in FIG. 4, six kinds of recording reservations from 1 to 6 are possible, and a menu display (recording start time, recording end time, TV channel, recording mode, etc.) at the time of normal timer recording is displayed. In addition, a "character information" column is provided to distinguish whether or not to record the character information.

For example, when a reservation is made in the "TV & character information recording mode", the "character information" column is displayed as "present" as shown in reservation 1 or reservation 2. On the other hand, if a reservation is made in the normal "TV recording mode" in which character information is not recorded at all, the "character information" column is displayed as "absent" as shown in reservation 3.

When a reservation is made in the "TV & character information recording mode", the news selected by key operation is entered in the "character information CH" field as shown in reservation 1 or reservation 2. & Types of text information programs such as sports, weather forecast, traffic information, entertainment, etc. are displayed.

When a reservation is made in the "character information recording mode", "FM" is displayed in the "CH" column for displaying the TV channel in the other modes, as shown in reservation 4. At the same time, "present" is displayed in the "character information" column, and the type of the selected character information program is displayed in the "character information CH" column.

The magnetic tape used as the recording medium in this embodiment is generally slightly longer than the displayed time. Therefore, like the present embodiment, even if a television broadcast program is recorded for the same time as the display time of the magnetic tape, and character information of several seconds is further recorded there, the trouble that the magnetic tape is cut off is unlikely to occur. I think that the. Therefore, the user does not need to consider the recording time of the magnetic tape by recording the FM character information. The remaining portion of the magnetic tape can be effectively used.

As described above, according to this embodiment,
"Reserved recording mode""TV& character information recording mode"
When 30 seconds before the “start time” as the first set time, the local oscillation signal for the FM channel is output from the local oscillation circuit 12 and is divided by the frequency divider 32. And is supplied to the mixing circuit 33. The character-multiplexed broadcast FM radio intermediate frequency signal output from the mixing circuit 33 is supplied to the fixed terminal on the e side of the changeover switch SW2. The movable terminal f of the changeover switch SW2 is connected to the fixed terminal on the e side, and the FM radio intermediate frequency signal is supplied to the audio receiving unit 4. The audio receiving unit 4 detects the FM radio intermediate frequency signal and supplies the FM radio broadcast audio signal to the FM multiplex data receiving unit 5. The FM multiplex data receiving section 5 extracts an image signal of character information of a character information program from the FM audio broadcast signal and supplies it to the fixed terminal on the b side of the changeover switch SW1. The movable terminal c of the changeover switch SW1 is connected to the fixed terminal on the b side, and the image signal is supplied to the recording signal processing unit 6. In the recording signal processing section 6, the image signal is converted into a recording signal, which is supplied to the fixed terminal g of the changeover switch SW3. The movable terminal i of the changeover switch SW3 is connected to the fixed terminal g, and the recording signal of the image signal is supplied to the magnetic head 71 of the recording unit 7. As a result, an image of character information of FM multiplex broadcasting is recorded on the magnetic tape that contacts the magnetic head 71. The recording of the character information is continued until all the character information of the set program is recorded.

Further, when the "start time" as the first set time is reached, the local oscillation signal for the television channel is supplied from the local oscillation circuit 12 to the mixing circuit 13. The television intermediate frequency signal output from the mixing circuit 13 is the video receiving unit 2
Is supplied to the video intermediate frequency amplifier circuit 21. The audio second intermediate frequency signal output from the video intermediate frequency amplifier circuit 21 is supplied to the fixed terminal on the d side of the changeover switch SW2. The movable terminal f of the changeover switch SW2 is connected to the fixed terminals from the e side to the d side so that the audio second intermediate frequency signal is transmitted to the audio receiving unit 4.
And the television broadcast audio signal is supplied from the audio detection circuit 42 of the audio receiving unit 4 to the recording unit 7 via the audio signal processing unit. On the other hand, the video signal output from the video detection circuit 22 of the video receiver 2 is supplied to the fixed terminal on the side a of the changeover switch SW1. The movable terminal c of the changeover switch SW1 is connected from the b side to the fixed terminal on the a side, and the video signal is supplied to the recording signal processing unit 6. This video signal is converted into a recording signal by the recording signal processing unit 6 and supplied to the magnetic head 71 of the recording unit 7 via the changeover switch SW3. As a result, a television broadcast image is recorded on the magnetic tape that contacts the magnetic head 71. An image of text information is recorded. The recording of the character information is continued until the "end time" as the second set time.

When the "end time" as the second set time is reached, the same operation as before the "start time" as the first set time is performed again, and the recording signal of the image signal is the magnetic head of the recording unit 7. The text information of the FM multiplex broadcast is recorded on the magnetic tape 71. Video of TV broadcast is recorded.
The recording of the character information is continued until all the character information of the set program is recorded.

The scope of application of the technical idea according to the present invention is not limited to the above-mentioned embodiment, and various forms can be considered.

In the present embodiment, the recording device is a video tape recorder, but it may be a device capable of recording a video signal and an image signal such as a device using a mini disk or a digital audio tape. Needless to say, the present invention can be applied. Also, it is possible to easily record only both voice and text information of FM multiplex broadcasting.

In the present embodiment, the "TV & character information recording mode" is described in which character information of FM multiplex broadcasting is recorded before and after recording of TV broadcasting, but only before recording of TV broadcasting. The character information may be recorded, or the character information may be recorded only after the television broadcast is recorded. Further, such selection of the recording position of the character information may be performed by a key operation.

Further, in the present embodiment, the FM radio intermediate frequency is set to 4.5 MHz, so that the audio receiving unit 4 which performs the audio processing of the audio second intermediate frequency signal of the television broadcast and the FM radio intermediate frequency signal in common. However, the audio receiving unit for TV broadcasting and the audio receiving unit for FM radio broadcasting may be separately provided. For example, if the FM radio intermediate frequency is set to 10.7 MHz, the conventional audio processing unit can be used as the audio receiving unit for the FM radio intermediate frequency signal.

[0091]

According to the present invention, the video signal and the audio signal relating to the television broadcast program are recorded in the recording medium by the recording unit from the first set time to the second set time, and the first medium is recorded in the recording medium. The image signal relating to the character information program of the FM multiplex broadcast is recorded by the recording unit before or after the second set time and after the second set time.

Therefore, the television broadcast program and the character information program of the FM multiplex broadcast at the time of the television broadcast program broadcast can be easily recorded on one recording medium. Therefore, by simple operation, the social situation at the time of recording is recorded in addition to the TV broadcast program, and the situation at the time of recording is felt vividly at the time of playback, and the power of the recorded TV broadcast program is further increased. .

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a video tape recorder as a first embodiment of the present invention.

2 is a flowchart showing an example of a control routine of the microcomputer shown in FIG.

FIG. 3 is a diagram showing an example of recorded contents.

FIG. 4 is a diagram showing an example of a menu screen.

[Explanation of symbols]

1 TV broadcast channel selection section 2 Video reception section 3 FM Radio broadcast channel selection section 4 Audio reception section 5 FM multiplex data reception section 6 Recording signal processing section 7 Recording section 8 Playback signal processing section 9 Microcomputer 10 Video tape recorder 11 High frequency amplification circuit 12 Local oscillation circuit 13 Television broadcasting mixing circuit 15 RF converter 16 Key operation unit 17 Clock circuit 18 E-E circuit 21 Video intermediate frequency amplification circuit 22 Video detection circuit 31 High frequency amplification circuit 32 Divider 33 FM Radio broadcasting mixing circuit 41 Audio intermediate Frequency amplification circuit 42 Audio detection circuit 51 FM multiplex data demodulation circuit 52 RAM 53 On-screen display circuit 61 Y / C separation circuit 62 Frequency modulation circuit 63 Frequency low frequency conversion circuit 64 Y / C mixing circuit 65 Recording signal amplification circuit 71 Magnetic head 81 Playback signal amplification circuit 2 high-pass filter circuit 83 the low-pass filter circuit 84 frequency demodulation circuit 85 frequency high frequency conversion circuit 86 Y / C mixing circuit AT _TV television broadcast reception antenna AT _FM FM radio broadcast receiving antenna SW1, SW2, SW3, SW4 selector switch

Claims (5)

[Claims] 1. A television broadcast channel selecting section for mixing a television broadcast signal and a first local oscillation signal to output a television intermediate frequency signal, and a video intermediate frequency signal and an audio intermediate frequency signal included in the television intermediate frequency signal. A video intermediate frequency amplifying circuit for extracting a second audio intermediate frequency signal from the above and amplifying the above video intermediate frequency signal; a video detecting circuit for detecting the above video intermediate frequency signal and outputting it as a video signal; A first audio detection circuit for detecting an intermediate frequency signal and outputting it as a TV broadcast audio signal, and an FM multiplex broadcast signal and a second local oscillation signal are mixed to generate an F signal.
An FM radio broadcasting channel selection section for outputting an M radio intermediate frequency signal, a second audio detection circuit for detecting the FM radio intermediate frequency signal and outputting it as an FM radio broadcasting audio signal, and multiplexing from the FM radio broadcasting audio signal. An FM multiplex data receiving section for taking out a data signal and outputting an image signal for displaying character / graphic information by the multiplex data signal, and a recording for recording the video signal, the television broadcast audio signal and the image signal on a recording medium. And recording the video signal and the television broadcast audio signal in the recording medium by the recording unit from the first set time to the second set time, and before the first set time and the first set time. A mode in which the image signal is recorded on the recording medium by the recording unit for a predetermined period of time after or after the second set time is set. Recording device. 2. The first voice detection circuit and the second voice detection circuit are also used, and the first local oscillation signal and the second local oscillation signal are obtained by using one oscillation circuit. The recording apparatus according to claim 1, wherein: 3. The first local oscillation signal is an oscillation signal output from the oscillation circuit, and the second local oscillation signal is a frequency divider that divides the oscillation signal output from the oscillation circuit. The recording apparatus according to claim 2, wherein the recording apparatus is obtained via 4. The recording apparatus according to claim 1, further comprising a mode in which the FM radio broadcast audio signal output from the second audio detection circuit is recorded in the recording medium by the recording unit. 5. An FM radio broadcasting channel selection unit that mixes an FM multiplex broadcasting signal and a local oscillation signal to output an FM radio intermediate frequency signal, and a detection process of the FM radio intermediate frequency signal to obtain an FM radio broadcasting audio signal. An audio detection circuit for outputting, an FM multiplex data receiving section for extracting a multiplex data signal from the FM radio broadcast audio signal and outputting an image signal for displaying character / graphic information by the multiplex data signal, the image signal and the above A recording apparatus comprising: a recording unit for selectively recording both or one of FM radio broadcast audio signals on a recording medium.