JP2000207798A - Record playback apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily know the recorded content in record information sections by showing a list of set picture codes in a record reservation information when booking the recording and inputting program category information. SOLUTION: About each recording booking and each picture recording program category picture codes are set to support the identification of their contents, a plurality of kinds of category picture codes are stored in a memory 18 and set (attached) to each recording program. In booking, a picture code suited to the program among the picture codes in a program category information memory 17 is set to book the recording. Using this identifying means, recording characteristics suited to the program are set by recording characteristics switch circuit 49. For recording e.g. a movie program, a picture code corresponding to the movie is set to send information indicating the recording of the movie program to the recording characteristic switch circuit 49, thereby recording with the movie recording characteristics set to frequency characteristics suited for the movie easy to see and with characteristics set to enhance the high and low frequency bands of voice.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording and reproducing apparatus, for example, as in a television signal recording and reproducing apparatus.
The present invention relates to a recording / reproducing apparatus capable of supporting selection and cueing (fast forward) of a target recorded program when recording and reproducing a video signal and an audio signal of a broadcast program received by a TV tuner.

[0002] Furthermore, the present invention provides a method for recording and reproducing a video / audio signal of a broadcast program received by a TV tuner, such as a television signal recording / reproducing apparatus, to obtain optimal signal characteristics for the program classification. The present invention relates to a recording / reproducing apparatus which can set and supply a good reproduced image or reproduced sound.

[0003]

2. Description of the Related Art Japanese Patent Laid-Open No. 58-942 discloses a magnetic recording and reproducing apparatus for selectively reproducing recorded video and audio signals.
No. 87, a storage circuit for storing recording and reproduction is provided, and each time the apparatus enters a recording state, the recording date and time, a recording channel, and the progress of a magnetic tape (cassette tape) are recorded as recording information. To check the recorded program, the recorded information stored in the storage circuit is converted into a video signal and displayed on a display device, and the designated information relating to the recorded program to be reproduced is input by an input device such as a keyboard, and the reproduction is performed. An apparatus for automatically cueing and playing back a desired recorded program based on this designation information is disclosed.

[0004]

According to this conventional apparatus, the recording start date and time, the day of the week, the recording channel, whether or not the audio is multiplexed, and the recording mode are obtained as display information relating to the recorded program recorded on the cassette tape. Can be But,
When selecting a target recorded program from a large number of cassette tapes or recorded programs, since there is little reference information and it is difficult to grasp the contents of the recorded program, a method of classifying the recorded information for each program has been adopted. However, there is a problem that the information becomes ambiguous over time because of the classification after recording.

Further, according to the conventional apparatus, information on a recorded program such as a recording start date and time, a day of the week, a recording channel, whether or not audio multiplexing is performed, and a recording speed recorded on a cassette tape is displayed. However, within the range of the above-mentioned program recording information, a desired program can be searched and reproduced, but the classification (genre) of the program cannot be determined, and the recording / reproduction suitable for the classification is not possible. It was not possible to automatically set the characteristics and obtain good reproduction image quality and reproduction sound quality.

An object of the present invention is to provide a recording / reproducing apparatus capable of inputting program classification information at the time of recording reservation in order to easily grasp the contents of recorded recording information divisions.

[0007] Another object of the present invention is to provide a recording device capable of changing the scheduled recording time by detecting program classification information from program information included in a received signal and comparing it with the program classification information set in the scheduled recording. A playback device is provided.

Further, an object of the present invention is to provide a system for displaying recorded program information contents as described above, wherein when a program is reserved for recording, the classification of the program is set by a pictorial code or the like, and the recorded contents are set to the above-mentioned contents. By providing a means for automatically setting the recording / reproducing characteristics most suitable for the classification set by the means, the reproduction image quality and the reproduction sound quality can be improved, and it is easy to see or hear.

[0009]

SUMMARY OF THE INVENTION The present invention manages the recording and reproduction of a plurality of information sections on a recording medium in association with the absolute address of the recording medium on which the information section to be recorded is recorded, and stores the information in the recording medium. Means for reproducing the selected information section by referring to the absolute address where the information section is recorded by displaying a list of the recorded information sections; and providing an arbitrary pictorial code for identifying the classification of each recorded information section. A picture code setting means for selectively storing a picture code attached to an information section, and a recording / reproducing apparatus for displaying a recorded information section and a picture code set in association with the information section;
Picture code setting means for selectively storing a picture code for identifying the classification of each reserved information section, means for displaying a list of the set picture codes in recording reservation information, and recording the set picture codes. It is characterized in that a means is provided for storing information associated with the information section and displaying a list of information sections recorded on the recording medium.

Further, the present invention manages the recording and reproduction of a plurality of information sections on a recording medium in association with the absolute address of the recording medium on which the information section to be recorded is recorded, and manages the recorded information sections on the recording medium. Means for reproducing the selected information section by referring to the absolute address where the information section was recorded by displaying a list of the information sections in which the information section is recorded, and changing the pictorial code for identifying the classification of each recorded information section to an arbitrary information section. Picture code setting means for attaching and selectively storing the picture information; means for displaying the recorded information section and the picture code attached to the information section; and displaying the picture code attached to the program information at the time of program recording. In a signal recording / reproducing apparatus provided with a selecting means, a recording means for setting a recording characteristic of an input video / audio signal to a characteristic optimal for the classification of the pictorial code is provided according to a set pictorial code. It, and, characterized in that a reproduction means for setting the reproducing characteristics of the video and audio signals output from the recording and reproducing apparatus to optimum characteristics on picture code classification.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a circuit configuration of a main part of a cassette tape type magnetic recording / reproducing apparatus (VTR) according to a first embodiment of the present invention.

In FIG. 1, 1 is a video signal input switching control circuit, 2 is a date / time signal generating circuit, 3 is an absolute address signal generating circuit, 4 is a program classification reading and storing circuit, 5 is a TV tuner, 6, 11, and 11, 12 is a video signal switching circuit, 7 is an information signal recording and processing circuit, 8 is an information signal multiplexing processing circuit, 9 is a video signal recording / reproducing processing circuit, 10 is a character signal adding circuit, 1
3 is a character signal generation circuit, 14 is a video signal presence / absence detection circuit,
Reference numeral 15 denotes a blue-back generating circuit, 16 denotes an information signal reproduction processing circuit, 17 denotes a classification information memory, 18 denotes a memory, 19 denotes a control signal recording processing circuit, 20 denotes a control signal reproduction processing circuit, 21 denotes a control signal switching circuit,
2 is a system control circuit, 23 is a reservation information memory, 24 is an operation unit, 25 is a display unit, 26 is a reel rotation speed detection circuit, 27 is a tape insertion detection circuit, 28 is a control head, 29 and 30 are video heads, 31 Is a magnetic tape, 32 is a take-up reel, 33 is a supply reel, 34 is an erroneous erasure prevention mode detection circuit, 35 is a TV broadcast signal input terminal, 36 is a video signal input terminal, and 37 is a video signal output terminal.

The operation unit 24 is composed of, for example, a remote controller, a power button for instructing power ON / OFF, and a tape navigation for displaying a cassette tape recording status and instructing a navigation function for supporting recording / reproduction selection. Button, list display button to instruct list display of recording contents, program selection button to select and instruct the desired recorded program, recording and playback button to instruct recording, playback button to instruct playback, stop to instruct recording or playback stop Button, a classification pictogram selection button, a decision button, and a timer recording transfer button (all are not shown). Each of these switch buttons is provided independently and exclusively as needed, or provided so as to be shared with other switch buttons.

Next, recording / reproduction control (mainly control processing executed by the system control circuit 22) in the magnetic recording / reproducing apparatus will be described with reference to the flowchart shown in FIG.

When the user turns on the power by operating the power button of the operation unit 24, the system control circuit 22 turns on the power of the magnetic recording / reproducing apparatus (step S1).

Then, first, the presence or absence of the set cassette tape (tape cassette 31) is confirmed (step S2), and then the insertion of the cassette tape 31 is monitored (step S3). The insertion of the cassette tape 31 is detected by the tape insertion detection circuit 27. When the tape insertion detection circuit 27 detects the insertion of the cassette tape 31, the system control circuit 22 performs preliminary reproduction (Step S).
4) to perform device number identification (step S5), tape identification number detection (step S6), and program information detection (step S7).

Here, the preliminary reproduction / recording information acquisition processing step S4 will be described. The signals reproduced by the magnetic heads 29 and 30 after the start of the preliminary reproduction are recorded on the video signal
The reproduction processing circuit 9 performs reproduction processing, and the information signal reproduction processing circuit 16 extracts a recording information signal and outputs the same to the system control circuit 22. Here, the recording information is an identification number unique to the apparatus that performed recording on the cassette tape 31 being reproduced, an identification number unique to the cassette tape, and absolute address information of the cassette tape (magnetic tape) being reproduced. It is.

The system control circuit 22 acquires and holds the recording information signal input from the information signal reproduction processing circuit 16. At this time, the system control circuit 2
2 controls the video signal switching circuit 11 to output the video signal from the TV tuner 5 to the video signal output terminal 37 via the character signal addition circuit 10. Therefore, the video signal reproduced in the preliminary reproduction process is not output to the video signal output terminal 37.

Since the purpose of this preliminary reproduction is to read and acquire the recording information recorded on the cassette tape 31, it is not necessary to display the reproduced video signal, and unnecessary display of the reproduced video signal is not required. I try to avoid it. After executing this preliminary reproduction processing for a predetermined time, the system control circuit 22 automatically stops the running of the cassette tape 31 and ends the preliminary reproduction.

The system control circuit 22 confirms the presence or absence of the recording information acquired and held in the preliminary reproduction (step S7). When you have recorded information,
The absolute address is set in the absolute address signal generating circuit 3 and the recording information stored in the memory 18 is searched (step S9), and the identification number unique to the apparatus reproduced from the cassette tape 31 and the identification number unique to the tape cassette are read. It is checked whether or not there is a record that matches the recording information stored in the memory 18 (step S10).

In this magnetic recording / reproducing apparatus, in the recording using the navigation function, every time the recording is executed, the identification number unique to the cassette tape, the recorded program number, the recording date, the day of the week, the recording channel, the recording start / end, and the like. The time and the recording mode are stored and stored in the memory 18 as recording information, and an identification number unique to the apparatus is stored.

The cassette tape 31 inserted in the apparatus
If the identification number unique to the device that performed the recording and the identification number unique to the cassette tape do not match those stored in the memory 18 ("N" in step S10), the recording information is not extracted in the preliminary playback (step S7). If the video signal presence / absence detection circuit 14 does not detect the reproduction of the video signal ("N" in step S10), the cassette tape 31 is rewound to the tape position at the time of cassette insertion and the preliminary reproduction is performed. Is resumed, and acquisition of the recording information is attempted again (step 11).

Then, it is confirmed again whether or not the recording information has been obtained (step S12), the recording information stored in the memory 18 is searched (step S13), and both the recording information are collated (step S14), and they match. If there is no cassette tape, the cassette tape 31 is rewound to the position where the cassette was inserted (step S16), and the unused unused smallest number is assigned as an identification number (tape number) unique to the cassette tape (step S17).

Next, the display of the recording state of the cassette tape 31 by the navigation function will be described. In the collation of the recording information obtained by the preliminary reproduction with the recording information stored in the memory 18, the identification number unique to the apparatus, the tape identification number, and the program recording information respectively match (step S).
10, "Y" in S14), it is confirmed whether or not there is an instruction to display a list in the navigation function from the operation unit 24 (step S18). When the list display is instructed, the recording information is read out from the memory 18 and recorded. A list of states is displayed (step S19).

This list display shows the blue-back generator 1
5 or a video signal from the TV tuner 5 or the video signal input terminal 36, by superimposing the characters and pictorial symbols generated by the character signal generating circuit 13 on the television monitor screen, or by displaying on the television monitor screen. Done by

Next, the cueing control will be described. When a target recorded program is selected by the operation unit 24 and cueing is instructed (step S20), the system control circuit 22 performs a cueing control processing step S21. In this control processing step S21, first, the recording start / end unit data is read from the memory 18 and a target absolute address is set. Then, the target absolute address read from the memory 18 and the cassette tape 31 are moved toward the recording start / end unit. The tape movement time is calculated from the difference between the current absolute address of the cassette tape 31 and the movement time calculated during the movement of the cassette tape, and the movement time calculated by counting the CTL signal. The current absolute address of the tape 31 is read, the absolute address is compared with the target absolute address, and if they match, the movement of the cassette tape 31 is stopped and the cueing ends.

Next, the reservation setting will be described. When the reservation of the VTR is set by the reservation transfer button of the operation unit 24 (step S22), the system control circuit 22 controls the character signal generation circuit 16 to display the reservation confirmation screen stored in the reservation information memory 23 and the received contents. Then, the data is output from the character signal addition circuit 10 to the external video signal output terminal 37 (step S23). When the pictorial code of the classification information attached to the information set for the scheduled recording is not input on the reservation confirmation screen ("N" in step S24), the operation unit 2
Pressing the power button 4 turns off the power (step S28), and automatically enters the reservation waiting state (step S29).

When the user presses the classification pictorial code selection button on the operation unit 24 and inputs classification information ("Y" in step S24), program classification and identification can be selected, and the program is selected from the fixed classification information memory 17 in advance (step S2).
5), stored in the reservation information memory 23 (step S2)
6). When the reservation confirmation is completed (step S27), the power is turned off by pressing the power button of the operation unit 24 (step S2).
8), and enters a reservation waiting state (step S29).

When the reservation set time comes during the reservation waiting state,
From the system control circuit 22 to the reservation information memory 23
Is turned on (step S30), the selected program is selected, and a recording process is performed (step S31).
In the recording processing step S32, the identification number (tape number) unique to the cassette tape already allocated in the above processing, the absolute address of the current position from the beginning of the magnetic tape winding, the date and time at the start of recording, the day of the week, the recording channel, etc. And automatically stores it in the memory 18 (step S38).

Then, the cassette tape 31 is used for recording.
Of the absolute address signal generation circuit 3
To start counting the absolute addresses. Further, the system control circuit 22 controls the control signal recording processing circuit 20, and records a cue signal on the cassette tape 31 by the control head 28. During recording, a video signal and an audio signal obtained by multiplexing the unique identification number (tape number) of the cassette tape 31, the number of the recorded program being recorded, and the recording information such as the absolute address of the current position of the cassette tape are converted into a cassette. Recording (recording) on the tape 31.

In step S33, the presence or absence of the program classification is called from the reservation information memory 23, and the presence or absence of the registration of the program classification information is determined.
Performs normal scheduled recording processing. If yes ("Y" in step S33), the program classification information is read from the reservation information memory 23 and additionally written into the same memory 18 as the recording information of the step (S34) (step 34).

When the recording end time comes, the system control circuit 22 stops the movement of the cassette tape 31, stops the absolute address counting by the absolute address signal generating circuit 3 ("Y" in step S36), and turns off the power (step S36). Step S37).

The recording information at this time includes a recorded program number, a recording date, a day of the week, a recording channel, a recording start / end time, a recording mode, a remaining tape time, whether or not audio multiplexing is performed, and whether or not stereo is performed. The first recording using the function includes the assigned tape number (identification number unique to the cassette tape).

Next, a description will be given of the recording reservation state display, the picture code setting, and the recording state display using the navigation function.

FIG. 3 shows an example of a reservation confirmation list screen displaying the contents of the reservation information memory 23. In FIG.
38 indicates a reserved program number, 39 indicates a date on which scheduled recording is performed, 40 indicates a channel to be recorded, 41 indicates a recording start time and an end time, and 42 indicates a tape speed of the recording. Arbitrary program number 3 reserved in this screen
When the user presses the category pictogram selection button of the "3" selection operation button 24 of FIG. 8, the program shifts to the program classification / identification selection screen (display example) of FIG.

In FIG. 4, reference numeral 44 denotes a picture code mark called from the program classification information memory 17, and reference numeral 43 denotes a picture code selected from an arbitrary picture code. The user selects a pictorial code associated with the contents of the reserved program with the classification pictorial code selection button of the operation unit 24 and presses the enter button to register the pictorial code in the reservation information memory 23.

FIG. 5 shows a program reservation confirmation list screen in which program classification information is registered in the reservation. In FIG. 5, 45
Indicates that the reserved program number 38 has been replaced by the pictorial code selected from the program classification information 44.

When the cassette tape 28 on which the book reservation has been executed is inserted into the magnetic recording / reproducing apparatus,
The system control circuit 22 performs a preliminary reproduction control, compares the reproduced recording information with the recording information stored in the memory 18, and, when the identification number unique to the apparatus and the tape identification number respectively match, the operation is performed. After waiting for a list display instruction by the list display button of the unit 24, the recording information is read from the memory 18 and the recording state is displayed in a list as shown in FIG.

The user operates the program selection button of the operation unit 24 while viewing the list display screen, thereby selecting and instructing a desired recorded program, pressing the enter button, and pressing the enter button to decide. The system control circuit 22 automatically starts recording / recording of the recorded program.
Search for the end unit and execute cueing. Here, a state is shown in which the recorded program number “picture code” is selected.

In the list display screen illustrated in FIG. 6, information for identifying the contents of the recorded programs "1" and "2" of the recorded program number 46 is insufficient. Therefore, in order to identify the content of each recorded program from the display information of the recording status displayed on the list display screen, it is necessary to rely on the user's memory. When the number of recorded programs is small and the number of cassette tapes 28 to be used is small, it is practical to discriminate by relying on storage, but as the number increases, it becomes difficult to discriminate.

The magnetic recording / reproducing apparatus is capable of setting a classification pictorial code for each recording reservation and each recorded program to assist in identifying the contents. This classification pictorial code is stored in the memory 18 with a plurality of types of pictorial codes suitable for classifying (identifying) the contents of the program, and the classification pictorial code is selected and set for each recorded program (attached). ).

FIG. 7 is a block diagram showing a second embodiment of the present invention. This embodiment is different from the above-described magnetic recording / reproducing apparatus in that the program classification information detecting circuit 47 for the video signal selected by the video signal switching circuit 6 and the circuit 4 for reading and storing the program classification information set in the reservation information memory 23 are provided. This is a magnetic recording / reproducing apparatus to which a circuit 48 for classifying and comparing the data detected by the program classification information and the data read by the reserved program classification is added. The common components are denoted by the same reference numerals, and redundant description will be omitted.

FIG. 8 is a flowchart showing the operation of FIG. 7, and the same reference numerals are given to the same components as in FIG. 7, and the duplicate description will be omitted. In FIG. 8, assuming that the reserved recording shown in the example of FIG. 5 is set, it is assumed that the third reservation (the program indicated by the pictogram in the figure) of the reserved program number 45 has been executed (step 2).
9).

The program classification information of the video signal input during the recording reservation is detected by the program classification information detecting circuit 47 (step 37), and the classification information of the program classification information reading and storing circuit 4 set in the program reservation (step 37). 33) and the classification comparison circuit 48
The recording is continued when they match with each other (step 38).
"Y"). If they do not match, the recording ends ("N" in step 38). If the start time and end time of the recording are ignored, only the target program can be pre-recorded, and the program can be extended and the start time can be changed.

In this manner, when the cassette tape 31 on which the classification pictorial codes are recorded is inserted into the magnetic recording / reproducing apparatus,
The magnetic recording / reproducing apparatus performs preliminary reproduction, compares the reproduced recording information with the recording information stored in the memory 18, and, when the identification number unique to the apparatus and the tape identification number respectively match, the operation unit When the list display is instructed by 24, the system control circuit 22 reads the recorded program information from the memory 18 and displays the list as shown in FIG.

The embodiment of the cassette tape type magnetic recording / reproducing apparatus using a cassette tape as a recording medium has been described above. However, the present invention is similarly applied to a recording / reproducing apparatus using a magnetic disk or an optical disk as a recording medium. Can be implemented.

Although the recording of a television signal in which a video signal and an audio signal are paired has been described as an example, the present invention is not limited to the recording information division in recording an image signal or an audio signal alone or other information signals. Can be applied.

Hereinafter, in the recording / reproducing apparatus according to the present invention, when recording and reproducing a video signal or an audio signal, a third signal characteristic which is optimal for the program classification is set.
An embodiment will be described with reference to the drawings.

In the third embodiment, the video characteristics and the audio characteristics of the audio signal frequency-modulated by the video signal recording / reproducing processing circuit 9 are converted into the video characteristics and the audio characteristics suitable for the type of the program to be recorded. And at the time of reproduction, the reproduction characteristic of the signal recorded with the normal characteristics is switched to the reproduction characteristic suitable for the type of the recorded program and reproduced.

The video characteristics to be switched include, for example, a luminance level, chroma characteristics, and the presence or absence of an edit process. As for the brightness level, switching is performed such as changing the brightness level itself corresponding to the program, changing the degree of emphasizing the contour corresponding to the program, and the like. As for the switching of the chroma characteristics, the saturation characteristics are changed according to the program to change the color density, and the phase characteristics are changed to change the hue.

The audio characteristics to be switched include, for example, changing the response for each of the low, middle, and high frequency bands, and adding a reverberation effect and a concert hall effect in accordance with the type of the program. Or to be done.

FIG. 9 is a block diagram showing a circuit configuration of a main part of a magnetic recording / reproducing apparatus (VTR) according to the third embodiment.

This embodiment is different from the first embodiment shown in FIG. 1 in that a program classification read circuit 4 is provided between a video signal recording / reproducing processing circuit 9 and a video / audio recording magnetic head 30. The recording characteristic switching circuit 49 controlled by the program classification signal is connected to the video signal recording / reproduction processing circuit 9 and the video / video
A program classification reading circuit 4 between the audio reproducing magnetic head 29;
It is characterized in that a reproduction characteristic switching circuit 50 controlled by a program classification signal from is provided.

As shown in FIG. 9, the magnetic recording / reproducing apparatus according to the present invention comprises a video signal input switching control circuit 1,
Time signal generation circuit 2, Absolute address signal generation circuit 3, Program classification reading and storing circuit 4, TV tuner 5, Video signal switching circuits 6, 11, 12, and Information signal recording processing circuit 7.
An information signal multiplexing processing circuit 8, a video signal recording / reproduction processing circuit 9, a character signal addition circuit 10, a character signal generation circuit 13, a video signal presence / absence detection circuit 14, an information signal reproduction processing circuit 16, Classification information memory 17 and memory 18
A control signal recording processing circuit 19, a control signal reproduction processing circuit 20, a control signal switching circuit 21, a system control circuit 22, a reservation information memory 23, an operation unit 24, a display unit 25, and a reel rotation speed. A detection circuit 26, a tape insertion detection circuit 27, a control head 28, a reproduction magnetic head 29, a recording magnetic head 30, an erroneous erasure prevention mode detection circuit 34,
TV broadcast signal input terminal 35 and video signal input terminal 36
, A video signal output terminal 37, a recording characteristic switching circuit 49
And a reproduction characteristic switching circuit 50.

A cassette tape 31 having a take-up reel 32 and a supply reel 33 is inserted into the magnetic recording / reproducing apparatus at the time of recording and reproduction and at the time of reservation standby.

The video signal input switching control circuit 1 is connected to a TV broadcast signal from the TV tuner 5 and an external video signal input terminal 3.
6 has a function of controlling the video signal switching circuit 6 so as to select the external video signal from the video signal switching circuit 6.

The date / time signal generation circuit 2 has a calendar function and a clock function, and has a function of outputting a current date and time signal.

The absolute address signal generating circuit 3 has a function of outputting a signal indicating an absolute address on the tape.

The program classification reading and storing circuit 4 has a function of reading and storing the program classification information of the recorded program read from the cassette tape 31 and the program classification information input from the operation unit 24.

The TV tuner 5 has a function of extracting a signal of a predetermined channel from the TV broadcast signal from the TV broadcast signal input terminal 35 and outputting the signal to the video signal switching circuit 6.

The video signal switching circuit 6 is controlled by the video signal input switching control circuit 1, and receives the T signal from the TV tuner 5.
It has a function of selecting a V broadcast signal and an external video signal from the external video signal input terminal 36 and outputting the same to the information signal multiplexing processing circuit 8.

At the time of recording, the information signal recording processing circuit 7 inputs video signal data such as a channel, date / time data, absolute address data indicating an absolute position to be recorded on a tape, and a program indicating a program type (genre). It has a function of outputting an information signal such as classification data to the information signal multiplexing processing circuit 7.

The information signal multiplexing processing circuit 8 multiplexes the video signal / audio signal input from the video signal switching circuit 6 and the information signal input from the information signal recording processing circuit 7 to form a video signal recording / reproducing processing circuit. 9 is provided.

The video signal recording / reproducing processing circuit 9 converts the video signal, audio signal and information signal input from the information signal multiplexing processing circuit 8 into a state suitable for recording (for example, converting a baseband signal into an FM modulation signal). ), And converts it to a state suitable for reproducing and displaying video and audio signals and information signals reproduced from the recording magnetic head 30 (for example, converting an FM modulation signal to a baseband signal). ) And outputs the result.

The character signal adding circuit 10 adds a character signal generating circuit 13 to the output image input from the video signal switching circuit 11.
It has a function of adding a character signal and a picture code signal input from the PC (super impose).

The video signal switching circuit 11 is controlled by the video signal input switching control circuit 1, and reproduces the video signal from the video signal recording / reproduction processing circuit 9 and the input video signal from the video signal switching circuit 6, or omits illustration. And a function of selecting the blue-back signal from the blue-back generating circuit and outputting the selected signal to the character adding circuit 10.

The video signal switching circuit 12 is controlled by the video signal input switching control circuit 1 to select a reproduction signal from the video signal recording / reproduction processing circuit 9 and an input video signal from the video signal switching circuit 6. It has a function of outputting to the video signal switching circuit 11.

The character signal generating circuit 13 has a function of generating a character signal to be superimposed on an output image based on character data from the system control circuit or a function of generating a picture code signal based on program classification data from the system control circuit. have.

The video signal presence / absence detection circuit 14 has a function of detecting whether or not a video signal is output to the output of the video signal switching circuit 12.

The information signal reproduction processing circuit 16 has a function of reproducing the output of the video signal switching circuit 12 and extracting the information signal recorded in the information area of the tape.

The classification information memory 17 stores program classification information corresponding to the type (genre) of the program, for example, composed of various picture codes as shown in FIG.

The memory 18 stores device number information and tape identification information, and program information (recording date, day of the week, recording channel, recording start time, recording end time, recording mode, program classification information, absolute address information, etc.). Information) is stored.

The control signal recording processing circuit 19 has a function of recording a control signal for controlling the running of the tape during recording on the tape via the control head 28.

The control signal reproduction processing circuit 20 has a function of reproducing a control signal recorded on the tape at the time of image reproduction and controlling the running of the tape.

The control signal switching circuit 21 has a function of connecting the control signal recording processing circuit 19 to the control head 28 at the time of recording and connecting the control signal reproduction processing circuit 20 at the time of reproduction.

The system control circuit 22 has a recording /
It controls various controls of the whole system such as playback processing, tape drive, recording reservation, recording execution, and preliminary playback.

The reservation information memory 23 stores recording reservation information, such as recording date, day of the week, recording channel, recording start time, recording end time, recording mode, and program classification information, which are input from the operation unit 24.

The operation unit 24 is composed of, for example, a remote control device, and includes a power button for instructing power ON / OFF, a tape navigation for displaying a cassette tape recording status and instructing a navigation function for supporting recording / reproduction selection. Button, list display button for instructing a list display of recorded contents, program selection button for selecting and instructing a target recorded program, recording / playback button for instructing recording, play button for instructing playback, stop for instructing stop of recording or playback A button, a classification pictogram selection button, a decision button, and a timer recording transfer button (all not shown) are provided. Each of these switch buttons is provided independently and exclusively as needed, or provided so as to be shared with other switch buttons.

The display unit 25 includes LCD, PDP, LED,
It is configured using various display elements such as EL, and has a function of displaying various information relating to recording / reproduction such as program reservation status, character information, pictorial codes, and the like.

The reel rotation number detecting circuit 26 is provided with a take-up reel 32 and a supply reel 3 for obtaining absolute address information.
3 has a function of detecting the number of rotations.

The tape insertion detecting circuit 27 has a function of detecting whether or not the tape cassette 31 has been inserted into the recording / reproducing apparatus.

The control head 28 is a magnetic head for writing and reading a control signal for controlling the running of the tape.

The reproducing magnetic head 29 has a function of reproducing a video signal and an audio signal from a magnetic tape.
In this embodiment, a single magnetic head is used for video signals and audio signals without distinction.

The recording magnetic head 30 has a function of recording a video signal and an audio signal on a magnetic tape. In this embodiment, one magnetic recording head is used without distinguishing between a video signal and an audio signal. Shown by head.

The erroneous erasure prevention mode detection circuit 34 has a function of detecting whether or not the tape cassette 31 is set to the erroneous erasure prevention mode.

The TV broadcast signal input terminal 35 has a terrestrial wave,
TV broadcast signals such as satellite broadcasts and cable televisions are input.

Various video signals from the outside are input to the video signal input terminal 36.

The video signal output terminal 37 is a terminal for outputting the reproduced image signal, character signal and picture code signal to an external monitor.

The recording characteristic switching circuit 49 is a characteristic circuit in this embodiment, and switches the characteristics of the video signal or the audio signal FM-modulated by the video signal recording / reproducing processing circuit 9 based on the program classification. Recording magnetic head 30
It has the function of outputting to

The reproduction characteristic switching circuit 50 is a characteristic circuit in this embodiment. The reproduction characteristic switching circuit 50 converts the characteristics of a video signal and an audio signal having normal characteristics reproduced from a tape into program classifications inputted from the operation unit 24 or the like. It has a function of switching based on information and outputting to the video signal recording / reproduction processing circuit 9.

Next, recording / reproducing control and signal processing in the magnetic recording / reproducing apparatus will be described with reference to flowcharts shown in FIGS.

First, the setting at the time of recording will be described with reference to FIG.

When the user turns on the power by operating the power button of the operation unit 24, the system control circuit 22 turns on the power of the magnetic recording / reproducing apparatus (step S1).

First, it is checked whether or not a cassette tape (tape cassette 31) is set (step S2). If no cassette tape is inserted (N), the insertion of the cassette tape 31 is monitored. (Step S3). The insertion of the cassette tape 31 is detected by the tape insertion detection circuit 27.

If the insertion of the cassette tape is not detected in step S3, this process ends.

When it is detected in step S2 that a tape is inserted, or when the tape insertion detecting circuit 27 detects insertion of the cassette tape 31 in step S3, the system control circuit 22 stores various information. Preliminary reproduction (step S4) for reproducing a specific portion of the tape 31 performed is performed, and the device number is identified (step S4).
5), and detection of a tape identification number (step S6) and detection of program information (step S7).

Here, the preliminary reproduction step S4 and the recording information acquisition processing steps S5 to S7 will be described. The signal reproduced by the video / image reproducing magnetic head 29 after starting the preliminary reproduction is subjected to reproduction processing by the video signal recording / reproduction processing circuit 9, and the information signal reproduction processing circuit 16 extracts the recording information signal, and the system control circuit 22.
Here, the recording information includes an identification number unique to the apparatus that performed recording on the cassette tape 31 being reproduced, an identification number unique to the cassette tape, and an absolute number of the cassette tape (magnetic tape) being reproduced. Address information.

The system control circuit 22 acquires and holds the recording information signal input from the information signal reproduction processing circuit 16. At this time, the system control circuit 2
2 controls the video signal switching circuit 11 to output the video signal from the TV tuner 5 to the video signal output terminal 37 via the character signal addition circuit 10.

Therefore, the video signal reproduced in the preliminary reproduction process is not output to the video signal output terminal 37. Since the purpose of this preliminary reproduction is to read and acquire the recording information recorded on the cassette tape 31, it is not necessary to display the reproduced video signal, and it is necessary to avoid unnecessary display of the reproduced video signal. ing. After executing this preliminary reproduction processing for a predetermined time, the system control circuit 22 automatically stops the running of the cassette tape 31 and ends the preliminary reproduction.

The system control circuit 22 checks the presence or absence of the recording information acquired and held in the preliminary reproduction.
(Step S7).

In the preliminary reproduction, when the device number cannot be identified in step S5, when the tape identification number cannot be recognized in step S6, or when the recording information is not extracted in step S7, the video signal presence / absence detection circuit 14 It is detected whether or not reproduction is being performed (step S8).

If the video signal presence / absence detection circuit 14 has not detected the reproduction of the video signal in step S8 (N), the cassette tape 31 is rewound to the tape position (winding position) at the time of cassette insertion, and the preliminary reproduction is resumed. Attempt to acquire the recording information again (step S11).

If it is determined in step S7 that the recording information is held, the absolute address is set in the absolute address signal generating circuit 3 and the recording information stored in the memory 18 is searched (step S9). , Cassette tape 31
It is checked whether or not there is a unit that matches the device-specific identification number and the tape cassette-specific identification number reproduced from, and the recording information stored in the memory 18 (step S1).
0).

In the recording using the navigation function, the magnetic recording / reproducing apparatus uses an identification number unique to a cassette tape recorded each time recording is performed, a recorded program number, a recording date, a day of the week, a recording channel, The recording start / end time, the recording mode, and the like are stored and retained in the memory 18 as recording information as shown in FIG. 3, and an identification number unique to the apparatus is retained.

In step S10, the identification number unique to the apparatus that performed the recording and recorded on the cassette tape 31 inserted in the apparatus and the identification number unique to the cassette tape are used.
If it does not match the one stored in the memory 18 (N), the cassette tape 31 is rewound to the tape position (the beginning of the tape) at the time of insertion of the cassette, the preliminary reproduction is restarted, and the acquisition of the recording information is attempted again (step S11). ).

As a result of trying to acquire the recording information again in step S11, it is confirmed whether or not the recording information has been acquired (step S1).
2) When the recording information is detected, the recording information stored in the memory 18 is searched (step S13), and the two recording information are collated (step S14). The tape is rewound to the position at the time of insertion (step S16), and the smallest unused numeral is assigned as an identification number (tape number) unique to the cassette tape (step S17).

When the video signal presence / absence detection circuit 14 detects the reproduction of the video signal in step S8, the process proceeds to step S1.
If no information is detected in step 2, it is determined whether or not the cassette tape 31 is set in the erroneous erasure prevention mode (step S15). To the beginning.

If it is determined in step S15 that the cassette tape 31 is set to the erroneous erasure prevention mode, the flow shifts to step S22.

In step S10 and step S14, if there is coincident data, the recording state of the cassette tape 31 is displayed on the display unit 25 or an external monitor using the data.

Next, display of the recording state of the cassette tape 31 by the navigation function will be described. In the collation between the recording information obtained by the preliminary reproduction and the recording information stored in the memory 18, when the identification number unique to the apparatus, the tape identification number, and the program recording information match ("Y" in steps S10 and S14), Operation unit 24
It is checked whether or not there is an instruction to display a list in the navigation function (step S18). When the instruction to display the list is issued, the recording information is read from the memory 18 and the recording state is displayed on the external monitor as shown in FIG. It is displayed (step S19).

This list is displayed on the television monitor screen by superimposing the characters and pictorial symbols generated by the character signal generating circuit 13 on the video signal from the TV tuner 5 or the video signal input terminal 36,
Alternatively, it is performed by the display unit 25.

Next, the cueing control will be described. It is monitored that an instruction for selecting a target recorded program and searching for the target is input from the operation unit 24 (step S20). When the target recorded program is selected and the instruction for searching for the program is specified, the system control circuit 22 A cueing control process (step S21) is performed.

In this cueing control process (step S21), first, the recording start / end unit data is read from the memory 18 to set a target absolute address. Then, the cassette tape 31 is moved toward the recording start / end unit.
The tape movement time is calculated based on the difference between the target absolute address read from the memory 18 and the current absolute address of the cassette tape 31. During the movement of the cassette tape, the calculated movement time and the movement time calculated by counting the CTL signal are calculated. Compare,
If they match, the current absolute address of the cassette tape 31 is read, and the absolute address and the target absolute address are compared. If they match, the movement of the cassette tape 31 is stopped and the cueing ends.

After a tape number is assigned in step S17, or when no list is displayed in step S18, or when a cue number is not input in step S20, a reservation setting process (step S22)
Move to.

Next, the reservation setting will be described. When the reservation of the recording is set by the reservation transfer button of the operation unit 24 (step S22), the content is stored in the reservation information memory 23 from the system control circuit 22, and the reservation confirmation screen display of the received content is generated by a character signal generation. The circuit 16 controls and outputs from the character signal addition circuit 10 to the external video signal output terminal 37, outputs a reservation screen on an external monitor and confirms the reservation (step S23), and determines whether or not the program classification is input. A determination is made (step S24).

When the pictorial code of the classification information accompanying the information set for the scheduled recording is not input on the reservation confirmation screen ("N" in step S24), the reservation confirmation is terminated (step S27), and the power of the operation unit 24 is turned off. When the button is pressed, the power is turned off (step S28), and the state automatically shifts to a reservation waiting state (step S29).

In step S24, when the user presses the classification pictorial code selection button on the operation unit 24 to input the program classification information (Y), the program classification / identification can be selected, and the classification pictorial code is stored in the fixed classification information memory 17 in advance. Is selected (step S25) and stored in the reservation information memory 23 (step S26).

When the reservation confirmation is completed (step S2)
7) The power is turned off by pressing the power button of the operation unit 24 (step S28), and the apparatus enters a reservation waiting state (step S2).
9).

When the reservation set time comes during the reservation waiting state (step S29), the reservation information memory 23 is called from the system control circuit 22, the power is turned on (step S30), and the set program is selected to perform the recording process. (Step S31).

In the recording processing step S31, the identification number (tape number) unique to the cassette tape already allocated in the processing such as the step S17, the absolute address of the current position from the beginning of the winding of the magnetic tape, Recording information such as date and time, day of the week, and recording channel is recorded on the tape (step S32), and the contents are automatically stored in the memory 18 (step S38).

Then, the cassette tape 31 is used for recording.
At the same time, the absolute address signal generation circuit 3 starts counting the absolute addresses. Further, the system control circuit 22 controls the control signal recording processing circuit 20, and records a cue signal on the cassette tape 31 by the control head 28. During recording, a unique identification number (tape number) of the cassette tape 31
A video signal and an audio signal obtained by multiplexing the recorded program number and the recorded information such as the current position and the absolute address of the cassette tape are recorded (recorded) on the cassette tape 31.

The program classification information is called from the reservation information memory 23, and it is determined whether or not the program classification information has been registered (step S33). If there is no program classification information in step S33 (N), a normal scheduled recording process is performed, and the process proceeds to step S36.

If there is program classification information in step S33 (Y), the program classification information is read from the reservation information memory 23 (step S34), and the program classification information is additionally written into the same memory 18 as the recording information (step S34). 3
5).

Further, at the time of recording, in order to set recording characteristics suitable for the program classified by the program classification information, the recording characteristic switching circuit is controlled to switch the signal processing system so as to obtain the optimum characteristics (step S39). .

When the recording end time comes, the system control control circuit 22 stops the movement of the cassette tape 31, stops the absolute address counting by the absolute address signal generating circuit 3 ("Y" in step S36), and turns off the power. (Step S37), the timer recording process ends.

At this time, the recording information to be recorded includes a recorded program number, a recording date, a day of the week, a recording channel, a recording start / end time, a recording mode, a remaining tape time, whether audio is multiplexed, and whether or not stereo. Yes, the first recording using the navigation function includes the assigned tape number (identification number unique to the cassette tape).

Next, signal control during reproduction will be described with reference to FIG.
This will be described with reference to FIG.

At the time of reproduction, the user loads a recorded tape into the apparatus main body, and further operates the reproduction button to start reproduction (step S50). The presence or absence of information recorded on the tape from the recorded tape is detected (step S
51). When the information is detected in step S51 (Y), the memory 18 is searched based on the information to detect the program classification (step S52), and the data read from the tape and the data read from the memory 18 are compared.
The presence or absence of matching data is detected (step S54). If no matching data is detected in step S54 (N), the process directly shifts to the playback state (step S5).
7).

On the other hand, when matching data is detected in step S54 (Y), the program classification information is further detected (step S55). If the program classification information is not found in step S55 (N), the reproduction state is set as it is (step S57). If the program classification information is found (Y), the reproduction characteristic switching circuit 50 is adjusted to the classification information. Switch (step S56). Thereafter, the reproduction signal is reproduced in the state of the switched reproduction characteristics (step S57). When the reproduction is completed, the power is turned off by the user (step S58), and the reproduction processing is terminated.

Next, a description will be given of a recording reservation state display, a picture code setting, and a recording state display using the navigation function. An example of the reservation confirmation list screen display displaying the contents of the reservation information memory 23 is the same as the example of the reservation confirmation list screen display described with reference to FIG. 3 in the first embodiment. The display example of the program classification / identification selection screen is the same as the display example of the program classification / identification selection screen described with reference to FIG. 4 in the first embodiment.

Further, the program reservation confirmation list screen in which the program classification information is registered in the reservation is the same as the example of the program reservation confirmation list screen display described with reference to FIG. 5 in the first embodiment.

A list display screen for displaying a list of recording states obtained by preliminary reproduction when the cassette tape 31 for which the reservation has been executed is inserted into the magnetic recording / reproducing apparatus will be described with reference to FIG. 6 in the first embodiment. This is the same as the case of the example of the list screen display of the recording state described above.

The magnetic recording / reproducing apparatus according to this embodiment is capable of setting a classification pictogram for each recording reservation and each recorded program, which assists identification of the contents. As the classification pictograms, a plurality of classification pictograms of graphics suitable for classifying (identifying) the contents of the program are stored in the memory 18, and the classification pictograms are selected and set for each recorded program ( Attached).

Next, signal processing when a reserved program set by the above method is recorded will be described with reference to FIG.

FIG. 12 schematically shows an example of the characteristic setting according to the above-described program classification according to the present embodiment. The pictorial codes corresponding to each program classification and the video characteristics suitable for the program classification are shown. Also, the setting contents of the audio characteristics are shown.

For example, when the program classification is movie (foreign film), the pictorial symbol shown in the first column of FIG. 12 is used, the video characteristics are set to darken the brightness and the outline is weakened, and the edit function is turned off. Is set. The sound characteristics are set such that the response in the middle range is set to a low value and the response is increased in the low range and the high range. When the program classification is news, it is the pictorial code shown in the second column in FIG. 12, the video characteristics are set to make the brightness bright, the outline is made strong, and the edit function is set to on. This sound characteristic is set so that the response in the middle range is set to be high, and the response is reduced in the low range and the high range. Hereinafter, music and drama are also set as illustrated.

At the time of reservation, a picture code suitable for the program is set from the picture codes in the program classification information memory 17 and recording reservation is made. The set pictorial code is a means for identifying the content of each recorded program, and the recording characteristic switching circuit 49 sets a recording characteristic more suitable for the program using this identification means.

For example, in the case of recording a movie program, when a picture code corresponding to a movie is set, information indicating that the movie program is to be recorded is sent from the set picture code to the recording characteristic switching circuit 49, and the picture recording is performed. The characteristics are recorded in such a manner that the frequency characteristics suitable for a movie, for example, the luminance setting is lowered (darkened), and the environment is close to a movie theater (the surroundings are darkened) so that it is easy to see. In addition, the sound is similarly set and recorded with the characteristics in which the low band and the high band are enhanced (49 in FIG. 12), so that a realistic sound quality can be obtained. On the other hand, when a news or talk program is set for recording, the luminance characteristics are made brighter than usual and the image characteristics are such that the outline is emphasized by the picture code information at the time of setting the reservation. At this time, the sound characteristics are emphasized in the middle range (50 in FIG. 12), and the frequency characteristics are set and recorded so that the contents of the talk can be clearly heard.

These video characteristics and audio characteristics do not need to be switched by the user for each recording classification. Even when recording is to be performed at the time of recording reservation or without reservation, the pictorial code of the program classification information memory 17 is used. By selecting and setting a pictorial code suitable for a program from among them, it is possible to perform recording with the above-described video characteristics and audio characteristics set.

Further, by setting the switching between the video characteristics and the audio characteristics using the pictorial codes and the like at the time of reproduction, the present invention can be applied even when a tape without the above characteristics set at the time of recording is reproduced. If it is a tape on which a classification pictorial code is recorded by a recording device having the same navigation system function as that described above, the frequency characteristics as described above are discriminated based on the pictorial code information, and the characteristics set optimally for the recorded program content You can play with.

In order to record on a magnetic tape with optimum characteristics according to the program classification as described above, the characteristics are set by frequency conversion (F
A fourth embodiment, which is performed at a stage (baseband) before performing M modulation or demodulation), will be described with reference to FIG.

In the fourth embodiment, a baseband recording characteristic switching circuit 51 is provided between the information signal multiplexing processing circuit 8 and the video signal recording / reproducing processing circuit 9, and the video signal recording / reproducing processing circuit 9 and the video signal A baseband reproduction characteristic switching circuit 52 is provided between the switching circuit 12 and the program classification reading and storing circuit 4.
The embodiment is different from the embodiment shown in FIG. The operation is substantially the same as that of the embodiment shown in FIG. 9 except that the characteristics of the video signal are changed in the baseband, and therefore, detailed description is omitted.

In FIG. 13, a baseband recording characteristic switching circuit 51 is a characteristic circuit in this embodiment, and changes the characteristics of the video signal or audio signal of the baseband signal input from the information signal multiplexing processing circuit 8. It has a function of switching and outputting to the video signal recording / reproduction processing circuit 9 based on the program classification.

The baseband reproduction characteristic switching circuit 50 is a characteristic circuit in this embodiment. The reproduction signal converted into the baseband signal by the video signal recording / reproduction processing circuit 9 is input from the operation unit 24 or the like. It has a function of switching based on the received program classification information and outputting it to the video signal switching circuit 12.

Although the embodiments have been described with reference to a cassette tape type magnetic recording / reproducing apparatus using a cassette tape as a recording medium, the present invention relates to a recording / reproducing apparatus using a magnetic disk or an optical disk as a recording medium. Can be similarly implemented.

[0147] In addition, the recording of a television signal in which a video signal and an audio signal are paired has been described as an example. However, the present invention can be applied to a mode in which a video signal or an audio signal is independently switched.

Further, the present invention provides a program classification to a broadcast signal and allows a receiver to select a video characteristic and an audio characteristic corresponding to the program classification. Video characteristics and audio characteristics can be selected in accordance with the program classification to achieve an optimal reception state. Further, even when the program classification of the broadcast signal is not given, the video characteristics and the audio characteristics corresponding to the program classification are set in the receiver, and the program classification is selected at the time of reception, so that the program classification can be adjusted. It is possible to set an appropriate video characteristic or audio characteristic reception state.

If the present invention is modified and applied to a video camera, there are provided means for switching video characteristics and audio characteristics according to shooting conditions such as weather, brightness, indoor and outdoor, and means for recording shooting conditions. By changing the characteristics according to the shooting conditions and recording or playing back,
Images can be recorded and reproduced under optimum conditions.

[0150]

According to the present invention, it is possible to set a classification / identification signal of a program before recording. After recording, the contents of the recording information section set at the time of reservation are displayed in a list of recordings. It can be displayed in pictograms, making it easy to grasp the contents. In addition, by comparing the program classification / identification information of the input video signal with the classification / identification information of the reserved program, the reserved program can be extended. And so on.

Further, according to the present invention, in a system capable of identifying the content of a signal for classifying and identifying a program by using a pictorial code or the like, a frequency characteristic most suitable for recording or reproduction of the program category is set. It is possible to do
For each program content, it is very easy to see and listen,
It can record and play back.

[Brief description of the drawings]

FIG. 1 is a block diagram of a cassette tape type magnetic recording / reproducing apparatus showing a first embodiment of the present invention.

FIG. 2 is a flowchart of a control process executed by the magnetic recording / reproducing apparatus shown in FIG.

FIG. 3 is a reservation confirmation list display screen in a control process executed by the magnetic recording / reproducing apparatus shown in FIG. 1;

FIG. 4 is a diagram showing control processing executed by the magnetic recording / reproducing apparatus shown in FIG. 1;

FIG. 5 is a program reservation list display screen in which classification pictorial symbols are set on the program reservation list screen in the control processing executed by the magnetic recording apparatus shown in FIG. 1;

6 is a list display screen of the cassette tape recorded programs and the pictorial symbols after the scheduled recording shown in FIG. 5 has been executed.

FIG. 7 is a block diagram of a magnetic recording and reproducing apparatus according to a second embodiment of the present invention.

FIG. 8 is a detailed flowchart showing a process of the magnetic recording / reproducing apparatus shown in FIG. 7;

FIG. 9 is a block diagram of a magnetic recording / reproducing apparatus according to a third embodiment of the present invention, which switches video characteristics and audio characteristics of a frequency modulation signal in accordance with a program classification.

10 is a flowchart of a control process at the time of recording performed by the magnetic recording / reproducing apparatus shown in FIG. 9;

FIG. 11 is a control processing flowchart at the time of reproduction executed by the magnetic recording / reproducing apparatus shown in FIG. 9;

FIG. 12 shows a program classification and pictorial codes corresponding to the classification.
Further, a table showing an example of video / audio characteristics optimally set for the classification pictorial code.

FIG. 13 is a block diagram of a magnetic recording / reproducing apparatus according to a fourth embodiment of the present invention, in which video characteristics and audio characteristics are switched in baseband in accordance with a program classification.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Video signal input switching control circuit 2 Date and time signal generation circuit 3 Absolute address generation circuit 4 Program classification reading and storing circuit 5 TV tuner 6, 11, 12 Video signal switching circuit 7 Information signal recording processing circuit 8 Information signal multiplex processing circuit 9 Video signal recording / reproduction processing circuit 10 Character signal addition circuit 13 Character signal generation circuit 14 Video signal presence / absence detection circuit 15 Blue back generation circuit 16 Information signal reproduction processing circuit 17 Classification information memory 18 Memory 19 Control signal recording processing circuit 20 Control signal reproduction Processing circuit 21 Control signal switching circuit 22 System control circuit 23 Reservation information memory 24 Operation unit 25 Display unit 26 Reel rotation speed detection circuit 27 Tape insertion detection circuit 28 Control head 29, 30 Video head 31 Cassette tape (tape cassette) 34 Erroneous erasure prevention mode detection circuit 35 TV broadcast signal input terminal 36 External video signal input terminal 37 Video signal output terminal 38 Reserved program number 39 Reserved program date 40 Recorded program 41 Recording start time and end time 42 Recording tape speed 43 Program classification selection Picture code 44 Program classification picture code list 45 Selected program classification picture code 46 Picture code registered on tape 47 Program classification information detection in video signal 48 Classification information comparison circuit 49 Recording characteristic switching circuit 50 Playback characteristic switching circuit 51 Base Band recording characteristic switching circuit 52 Baseband reproduction characteristic switching circuit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masao Sato 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Inside Hitachi Image Information System (72) Inventor Hideki Endo 1410 Inada, Hitachinaka-shi, Ibaraki Hitachi, Ltd. (72) Inventor Hiroto Yamauchi 1410 Inada, Hitachinaka-shi, Ibaraki Prefecture Incorporated Hitachi, Ltd.AV Division (72) Inventor Takeo Okochi 1410, Inada, Hitachinaka-shi, Ibaraki Hitachi, Ltd.AV Division ( 72) Inventor Kimio Oura 1410 Inada, Hitachinaka-shi, Ibaraki Pref., Hitachi, Ltd.AV Division (72) Inventor Yukio Sato 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa F 5D077 AA08 BA15 CA02 CA03 DC04 DC32 HA07 HC11 HC12 HC17 5D 102 AC01 GA02 GA08 GA50 GA64 5D104 AB11 AC01 MB06 MF02 MF19

Claims (4)

[Claims] 1. A method for managing the recording and reproduction of a plurality of information sections on a recording medium in association with the absolute address of the recording medium for recording the information section to be recorded, and listing the information sections recorded on the recording medium. A means for reproducing the information section selected by displaying by referring to the absolute address where the information section is recorded, and a pictorial code for identifying the classification of each recorded information section are attached to any information section. A recording / reproducing apparatus comprising: a picture code setting means for selectively storing the picture information; and a display means for displaying a picture code set in association with the recorded information section. A signal recording / reproducing apparatus, wherein a code is selected at the time of program reservation, and a pictorial code set by the program reservation is automatically displayed along with the recorded information section after execution of the reservation recording. 2. A recording / reproducing apparatus according to claim 1, further comprising means for reading a signal for classifying the program content from the input video signal information and displaying the stored pictorial code for classification / identification. Recording / reproducing apparatus characterized by comprising means for comparing and discriminating with the pictorial code selected in (1) and means for changing the reserved recording time. 3. Recording and reproduction of a plurality of information sections on a recording medium and managing the information section recorded on the recording medium in association with the absolute address of the recording medium, and managing the information section recorded on the recording medium. A means for reproducing the selected information section by referring to the absolute address where the information section was recorded by displaying the list, and selecting a pictorial code for identifying the classification of each recorded information section by attaching it to an arbitrary information section. Picture code setting means for temporarily storing, a means for displaying the recorded information section and a picture code attached to the information section, and a means for selecting the picture code attached to the program information at the time of program recording. A recording / reproducing apparatus provided with a recording means for setting a recording characteristic of an input video / audio signal to a characteristic optimum for the classification of the pictorial code by a set pictorial code. Reproducing apparatus. 4. The recording / reproducing apparatus according to claim 3, further comprising a reproducing unit for setting a reproducing characteristic of a video / audio signal output from the recording / reproducing apparatus to a characteristic optimum for a pictorial code classification.