JPH06309848A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To enable a user of a magnetic recording and reproducing device to easily perform video recording reservation or program searching by enabling the user to recognize recorded contents without inserting and reproducing a tape into and by means of a VTR and to select a program from a displayed list. CONSTITUTION:Such information signals as the date, time, time code, etc., generated by means of information signal generating means 2 and 3 are recorded on a magnetic tape 11 by multiplexing the information signals upon video signals by means of a multiplexing means 7 and, at the same time, the generated information signals are stored in a memory 20. The information signals read out from the memory 20 are displayed on a list prepared one tape by one tape after replacing the signals with character signals by means of a character signal generation circuit 19 and outputting the signals after adding the signals to the video signals by means of an adding means 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording / reproducing apparatus which manages contents recorded on a plurality of magnetic tapes and facilitates retrieval and recording reservation.

[0002]

2. Description of the Related Art Conventionally, a magnetic recording / reproducing apparatus (hereinafter referred to as VTR
In general, a method of managing a magnetic tape (hereinafter, simply referred to as a tape) on which an image and a sound are recorded by affixing an index label in which recorded contents are written is managed. Also, when multiple programs are recorded on a single tape, a system for performing cue playback of the program you want to watch (searching for the beginning part of the program you want to watch by fast-forwarding or rewinding the tape and playing it) As an example, VI
SS (VHS Index Search System) and the like are well known. This rewinds or fast-forwards the tape while counting the number of cue signals recorded on the tape,
The tape is played when the desired count number is reached.

Further, there is a technique described in Japanese Patent Laid-Open No. 64-13278 for displaying the contents of the tape inserted in the VTR. When a tape is taken out from a VTR, the tape shows information indicating the recorded contents of the tape (number of each program and its program start position, program end position, input signal type, recording date, recording time, recording mode, comment, etc.) The information is recorded in the upper subcode area, and this information is reproduced and displayed during reproduction.

Furthermore, the recorded contents of a plurality of tapes are
A VTR that can be displayed without inserting a tape into the VTR has been commercialized (Matsushita Corp .; NV-BX25). This is because the recorded contents of each tape are stored in the VTR main body at the time of recording, the tape number is identified by the bar code label attached to each tape at the time of reproduction, and the recorded contents of the tape are called from the memory and displayed. And the above VIS
S is used for cueing.

In order to make a recording reservation to reserve a program to be recorded, the user inputs the date or day of the week, the channel, the recording time, the recording mode, or the like, or a program code called a G code, which is unique to the program. The method of inputting is general.

[0006]

By the way, the conventional method of writing the recorded contents in the above-mentioned index label to manage the tape is troublesome, and the index label needs to be rewritten when recording is repeated. Also VI
When using a method such as SS to find the beginning of a program, it is necessary to keep track of what number on the tape the program you want to watch is recorded, or to write it on the index label, which is inconvenient. There is a problem.

Further, in the technique disclosed in the above-mentioned Japanese Patent Laid-Open No. 64-13278, it is necessary to insert the tape into the VTR in order to display the contents of the tape. The problem is that it takes time to find the program you want.

Further, the above-mentioned method of identifying the tape by the bar code label requires a mechanism and a circuit for reading the bar code, which causes a problem of cost increase.

Further, there is a problem in that the user has to input the date, time and other data one by one to make a recording reservation, which is very troublesome and there are many input errors. On the other hand, although the method of inputting the G code to make a recording reservation is simple in operation, the G code is meaningless to the user, so a code table with a program code is required separately. , G code cannot be applied if the G code is unknown.

Therefore, the technical problem to be solved by the present invention is to solve the above-mentioned problems of the prior art,
An object of the invention is to provide a VTR capable of easily searching a plurality of tapes and recording reservations.

[0011]

In order to achieve the above object, according to the present invention, a memory means for storing the recorded contents of a plurality of magnetic tapes and a tape number based on the date and time and the time code recorded on the magnetic tapes. Means for reading and displaying the recorded contents of the corresponding tape from the memory means, and means for selectively performing a cue operation or a program reservation from the displayed recorded contents.

[0012]

In the present invention, the recorded contents of a plurality of magnetic tapes are recorded as V
Since the TR itself can memorize and display, the user can easily know the recorded contents of each tape, and using the displayed stored contents, the user can easily find the beginning of the program,
The recording reservation operation can be performed.

[0013]

Embodiments of the present invention will be described below with reference to FIGS. First, a first embodiment of the present invention will be described.
FIG. 1 is a block diagram showing a circuit configuration of essential parts of a VTR according to the first embodiment of the present invention.

In FIG. 1, 11 is a tape (magnetic tape), and 9 and 10 are reels for winding the tape 11. Reference numeral 29 is a TV broadcast signal input terminal, 5 is a TV tuner for receiving the TV broadcast signal from the input terminal 29,
Reference numeral 30 is an input terminal for a video signal from an external device such as a video camera or another VTR, 6 is a switch circuit for switching and outputting a video signal from the tuner 5 and the input terminal 30, and 1 is a tuner 5 2 is a video signal input switching control circuit for controlling channel selection and switching of the switch circuit 6.

Reference numeral 2 is a date / time signal generation circuit, 3 is a time code signal generation circuit, and 4 is an information signal recording processing circuit. The selection information of the input signal from the video signal input switching control circuit 1 and the date / time signal generation circuit. Date / time information from circuit 2,
The time code signal from the time code signal generating circuit 3 is input, and these information signals are output in accordance with a predetermined recording format. An information signal multiplexing circuit 7 multiplexes the information signal from the information signal recording processing circuit 4 in a vertical blanking period of the video signal from the switch circuit 6 (a period in which an image signal including a vertical synchronizing signal does not exist).

A video signal recording / reproducing processing circuit 8 frequency-converts the video signal from the information signal multiplexing circuit 7 into a recordable signal at the time of recording, and reverse-frequency-converts the reproduced signal at the time of reproducing. . Reference numerals 12 and 13 denote magnetic heads, which convert a recording electric signal from the video signal recording / reproducing processing circuit 8 into a magnetic signal and record it on the tape 11, and also convert a reproducing magnetic signal from the tape 11 into an electric signal. Output to the video signal recording / reproducing processing circuit 8.

Reference numeral 15 denotes a switch circuit, which switches between a recorded video signal input to the video signal recording / reproduction processing circuit 8 and a reproduction video signal output from the same circuit 8 and outputs it. Three
3 is a blue back generation circuit for generating a signal for making the entire screen a blue color, 32 is a switch circuit, and the switch circuit 15
And the output from the blue back circuit 33 are switched and output. Reference numeral 19 is a character signal generation circuit, and 18 is a character signal addition circuit, which adds the character signal from the character signal generation circuit 19 to the video signal from the switch circuit 32. An output terminal 31 outputs the video signal from the character signal addition circuit 19.

A video signal presence / absence detection circuit 16 receives the output signal from the switch circuit 15 and detects the presence / absence of a video signal. Reference numeral 17 denotes an information signal reproduction processing circuit, which also receives an output signal from the switch circuit 15 as an input and reads and outputs an information signal multiplexed with the video signal from the switch circuit 15.

Reference numeral 22 is a control signal recording processing circuit,
A control signal for controlling the running of the tape 11 is generated and information such as a cue signal is added by changing the pulse width of the control signal. Reference numeral 14 is a control head for recording / reproducing a control signal. A control signal reproduction processing circuit 23 reads the reproduced control signal and discriminates the added information such as a cue signal. Reference numeral 21 denotes a switch circuit, which outputs a recording control signal from the control signal recording processing circuit 22 to the control head 14 when recording the control signal, and outputs a reproduction control signal from the control head 14 when reproducing the control signal. Output to the reproduction processing circuit 23.

Reference numeral 24 is a tape insertion detection circuit for detecting the insertion of the tape 11 into the VTR, 25 is a reel rotation number detection circuit for detecting the rotation number of the reels 9 and 10, and 3 is a reel rotation number detection circuit.
An erroneous erasure prevention mode detection circuit 7 indicates whether the tape 11 inserted in the VTR is in the erroneous erasure prevention mode by cutting a tab in a tape case (not shown) or opening / closing a slide type lid. Etc. Further, 27 is an operation unit for the user of the VTR to operate the operation of the VTR, and 28 is a display unit for notifying the user of the operating state of the VTR.

Reference numeral 26 is a system control circuit which controls the overall control. This system control circuit 26 is the VT.
In addition to controlling the operation of each part of R, it has a clock and calendar function for generating current time and date information. Reference numeral 20 denotes a memory, which is capable of reading and writing various information data under the control of the system control circuit 26. The memory 20
Power supply current is supplied to the minimum necessary circuit elements including the system control circuit 26 and the sub power supply for the sleep mode even when the main power supply is cut off. Furthermore, it is more preferable that the memory 20 is a non-volatile semiconductor memory means such as a battery-backed RAM or EEPROM.

In the present embodiment, the generated time code is reset at the beginning of the tape and takes a value representing hour / minute / second / frame number corresponding to the running time of the tape.

Here, as a technique for multiplexing the information signal in the vertical blanking period of the video signal, for example, a commercial VT is used.
Time code in R (VITC; Vertical Interva
Since many technologies are already generally known, such as Time Code), teletext, and chapter information on laser discs, detailed description thereof will be omitted here.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG. FIG. 2 is a flowchart showing the overall operation of this embodiment, and the overall processing flow is controlled by the system control circuit 26. First, the operation in the case of recording on the tape 11 in the state where no signal is recorded by the VTR of this embodiment will be described.

In step ST1, when the user gives an instruction to turn on the power, the system control circuit 26
Turns on the power of this VTR. When purchasing this VTR,
Since no data is written in the memory 20, the user does not request the display of the entire table of contents in step ST2.
Therefore, the system control circuit 26 does not perform the all-table-of-contents display process of step 3, but moves the process to step ST4.
Further, since the tape 11 is not inserted into the VTR at first, the system control circuit 26 advances the processing to step ST5. Tape 11 is a VTR depending on the user
, The tape insertion detection circuit 24 detects it, and the system control circuit 26 in response thereto detects preliminary reproduction (step ST6) and information signal (step ST7).

Preliminary reproduction (step ST6) will now be described. FIG. 3 is a flow chart showing the details of the preliminary reproduction process of step ST6, which is also common to the preliminary reproduction process of steps ST10, ST30, ST33 of FIG. 2 described later.

When the preparatory reproduction process is started, first the traveling for tape reproduction is started (step ST30).
1). The mechanism portion for running the tape is not shown in FIG. The magnetic heads 12 and 13 are tapes 1.
The signal reproduced from 1 is the video signal recording / reproducing processing circuit 8
Reproduction processing is performed by the information signal reproduction processing circuit 17 and the information signal is extracted by the information signal reproduction processing circuit 17.
It is output to 6. In the process of step ST302, the system control circuit 26 reads the reproduced information signal from the information signal reproduction processing circuit 17. Further, at this time, the system control circuit 26 controls the switch circuit 32 to output a blue back signal for making the entire screen a single blue color from the blue back generation circuit 33 to the output terminal 31 via the character signal addition circuit 18. Therefore, the video signal reproduced by the preliminary reproduction process is output from the output terminal 3
No output to 1. What is important is that the preparatory reproduction operation is intended to read the information signal, so that it is not necessary to output the video signal, thereby preventing the user from seeing an unnecessary video and feeling uncomfortable.

As a result of reading the information signal, when the time code is multiplexed in the reproduction signal, the system control circuit 26 presets the read time code value in the time code signal generating circuit 3 (step ST
303, ST304). When the time code is not multiplexed in the reproduction signal, the system control circuit 26
Calculates the tape running time from the reel rotation speed which is the output information of the reel rotation speed detection circuit 25, converts this value into a time code and presets it in the time code signal generation circuit 3 (steps ST303 and ST305). At this time, if the calculated value from the reel rotation speed is less accurate than the time code, for example, the number of frames is not calculated and the hour, minute,
The value of seconds should be preset.

After performing the preliminary reproduction operation for a predetermined period (for example, one second), the system control circuit 26 automatically ends the tape running (steps ST306 and 307).

By the above operation, the information signal of the current tape position can be read and the time code signal generating circuit 3 is preset. For example, when the inserted tape has already recorded the video signal and the information signal including the time code and the program is recorded continuously on this tape, the time code consecutive from the time code value preset in the preliminary playback is recorded. Since the values are generated and recorded, the continuity of the time code is maintained. Also, when recording on a portion where no time code is recorded, the time code value corresponding to the tape running time is recorded, so that, for example, a plurality of programs with a non-recorded portion sandwiched on one tape are recorded. Even when is recorded, the time code values do not overlap.

In step ST7 of FIG. 2, the system control circuit 26 determines whether or not an information signal has been detected as a result of the preliminary reproduction operation of step ST6, and if not detected, moves the process to step ST50. In step ST50, the video signal presence / absence detection circuit 16
Detects whether the video signal is being reproduced and outputs the result to the system control circuit 26. Then, the system control circuit 26 determines whether or not the video signal is detected by the video signal presence / absence detection circuit 16 as a result of the preliminary reproduction. When the video signal is detected in step ST50, the process proceeds to step ST14. If the video signal is not detected in step ST50, the tape is automatically rewound to the beginning of the tape for preliminary reproduction (step ST10) and detection of the information signal (step ST1).
Perform 1). If the information signal is not detected here as well, the system control circuit 26 detects in step ST14 whether or not the inserted tape 11 is in the erroneous erasure prevention mode by the output of the erroneous erasure prevention mode detection circuit 37. .

Since the information signal and the video signal are not detected on the non-recorded tape and the erroneous erasure prevention mode is not set, the system control circuit 26 executes the processing in step S.
Proceed to T18. When attempting to record on a new tape for the first time, the user instructs tape registration in step ST18 before recording. In response to this, the system control circuit 26 shifts the processing to step ST19 and assigns the smallest number which has not been used so far as the tape number for the inserted tape 11. Here, since it is the first tape of this VTR, the number "1" is assigned. Since the tape 11 is a non-recording tape, the user does not perform the table of contents creating process in step ST20, and the process proceeds to step ST26.

Steps ST26 to ST39 are processes selectively performed by a user's instruction. When the user uses the operation unit 27 to instruct reproduction, rewind, fast forward, recording reservation, title input, or recording, steps ST26, ST28, ST31, ST34, and ST3, respectively.
6, the input of each instruction is detected in ST38, and steps ST27, ST29 and ST30, or S
T32 and ST33, or ST35, or ST3
7 or ST39, each processing is performed.

In this embodiment, the user can input the title of the program to be recorded (ST36 and ST3).
7). That is, the title input by the user is the operation unit 2
If the instruction is given from 7, the title is input by the operation unit 27, which is detected in step ST36, and is temporarily held in the system control circuit 26 (step ST37).

Although not shown in FIG. 2, in this embodiment, the user can input the genre of the program in the same manner as the input of the title of the program. In this case, when the user instructs the genre input from the operation unit 27, the system control circuit 26
List of preset program genres (eg sports, music, movies, culture, variety, documentaries, etc.)
Is displayed on the display unit 28, or the genre list is displayed on the monitor by superimposing the output video signal by the character signal generation circuit 19 and the character signal addition circuit 18. As a result, the user selects a desired genre from the displayed genre list using the operation unit 27. Then, the system control circuit 26 holds the selected genre as one of the program data.

The title and genre of the program held in the system control circuit 26 are stored in the memory 20 as part of the program data at the time of recording before the recording of the program. After the recording of the program, it is additionally stored in the corresponding program data stored in the memory 20. Thus, if the user does not have time to input the title or genre before recording the program, the user can input these after recording the program.

When the user inputs a recording instruction from the operation unit 27, the system control circuit 26 detects it in step ST38 and performs recording processing (step ST39). Here, this recording process will be described.

FIG. 4 is a flow chart showing details of the recording process in step ST39. When the recording process is started, the process of the system control circuit 26 causes
The tape number already assigned in step ST19 of FIG. 2 (“1” as described above in this description),
And title information and genre information already input in step ST37 of FIG. 2, the type of input signal such as the date and time at the start of recording, the day of the week, the time code value, the channel,
The standard or long-time recording mode is automatically stored in the memory 20 (step ST401). Note that the day of the week does not necessarily have to be stored in the memory 20, and the day of the week may be calculated from the date as necessary after reading the date from the memory 20. Next, at the same time when the tape running for recording is started, the time code signal generation circuit 3 starts counting the time code. Further, the system control circuit 26 controls the control signal recording processing circuit 22, and the control head 14 records the cueing signal on the tape (step ST4).
02).

During recording, a video signal in which information signals such as date and time, channel and other input signals and time code are multiplexed is recorded on the tape 11 (step ST40).
3). If the end of recording is instructed in step ST404, the system control circuit 26 proceeds to step S
At the same time the tape running is stopped by the processing of T405,
Stop the time code counting operation. Then, the time code value at the end of recording, the date and time, the day of the week, the time from the start of recording to the end calculated from these numerical values, and the remaining tape time are stored in the memory 20 (step S
(T406), the recording process ends.

In FIG. 2, when the tape is taken out from the VTR, the user instructs the operation unit 27 to take out the tape 11 in step ST40. In response to this instruction, the system control circuit 26 proceeds to step ST4.
By the process of 1, the tape 11 is taken out and the tape number is displayed on the display unit 28, or the character signal generating circuit 19 is controlled to superimpose the tape number on the video signal output by the character adding circuit 18. This allows the user to know the tape number of the taken-out tape, so that after taking out the tape, the work of writing the tape number in the tape case or attaching the number sticker can be easily performed.

After that, in step ST42, when the user gives an instruction to turn off the power from the operation unit 27, the system control circuit 26 turns off the power of the VTR and terminates all the processes.

Next, a case will be described in which after recording is made on a plurality of tapes in this manner, the tapes are reproduced by the VTR.

In step ST5 of FIG. 2, when the tape insertion detection circuit 24 detects that the user has inserted the tape 11, the system control circuit 26 receives it and performs the preliminary reproduction process of step ST6. . As a result, when the information signal is detected in step ST7, the system control circuit 26 compares the information signal reproduced by the information signal reproduction processing circuit 17 with the information signal stored in the memory 20, and they match each other. Search for data. Ie memory 2
In 0, the date and time and the time code at the start of recording of the program recorded in the past in this VTR, the date and time and the time code at the end of the recording, title, channel, recording mode, tape number, etc. are stored. The date and time and the time code value of the information signal being reproduced, which is the output from the information signal reproduction processing circuit 17, are compared with each other to search for corresponding program data (step ST8).

When the corresponding program is found in this way (step ST9), the system control circuit 26
Reads the tape number of the program data from the memory 20 and identifies the tape number (step ST15). Since the tape 11 was sent earlier than the part where the tape 11 was recorded during the preliminary reproduction in step ST6, the information signal and the video signal were not detected in steps ST7 and ST50, or the corresponding program was not searched in step ST9. At this time, in step ST10, the magnetic tape 11 is automatically rewound to the beginning and preliminary reproduction is performed again, and in steps ST12 and ST13, the same search as in steps ST8 and ST9 is performed again. This can prevent the registered tape from being erroneously recognized as an unregistered tape.

In addition, a tape recorded by another VTR, which cannot record information signals in a multiplexed manner, is recorded in a VT.
When reproduced in R, a video signal is detected in step ST50, and the process automatically moves to step ST14.

After the tape number is identified in step ST15, the system control circuit 26 displays the tape number by the processing of step ST23, and
A list of the program data of the same tape number stored in the memory 20 is displayed as a table of contents. This display method may be displayed on the display unit 28, or may be superimposed on the video signal output by the character signal generation circuit 19 and the character signal addition circuit 18.

Items displayed in the table of contents include the title of each program, genre, recording start date and time, end date and time, time code value, channel, recording time, recording mode, tape remaining time of non-recording portion, and many others. The more information is displayed, the more information the user can obtain about the program. If the area that can be displayed is limited, the information is selectively displayed. FIG. 5 is a display example of the table of contents. In FIG. 5, the title, the date and day of recording, and the day of the week are recorded for the programs whose title information is input by the user, and the date, the day of the week and the time, and the channel of the recording start are recorded for the programs whose title information is not input. Input selection information such as is displayed. If such a display is performed, the user can infer the content of the program for which no title has been input, from the date and time of the table of contents display, the day of the week, and the channel.

When the table of contents is displayed, the user can specify the program to be watched (specify the cueing program number) with the operation unit 27 in step ST24 of FIG. 2 while watching it. In response to this, the system control circuit 26 executes a desired program cueing operation in the process of step ST25.

Next, the cueing operation will be described in detail. The output signal from the control head 14 is supplied to the control signal reproduction processing 23 via the switch circuit 21, and the cue signal written at the beginning of each program included in the control signal is output to the system control circuit 26. It System control circuit 2
6 fast-forwards or rewinds the tape 11 while counting this cueing signal. Then, the system control circuit 26 compares the pre-reproduced information signal with the program data in the memory 20 to determine which program in the table of contents the current tape reproduction position is, and the user wants to see it. Then, while counting the cueing signal up to the desired program, the magnetic tape 11 is fast forwarded or rewound as necessary, and when the desired count number is reached, reproduction is performed.

As another method of the cueing operation, there is also a method of calculating the position of the tape from the number of rotations of the reel from the number-of-revolutions detection circuit 25, and fast-forwarding or rewinding to the desired position to perform the cueing. Further, by using the time code recorded on the tape in combination with these methods, more accurate cueing can be performed quickly.

After the cueing is performed, the processing is step S.
Move to T27, playback is automatically performed. Therefore, the user simply selects the desired program on the displayed table of contents,
Cue playback is automatically performed.

The user rewinds the tape 11 with the operation unit 2
When the instruction is given in step 7, the system control circuit 26 detects the instruction in step ST28 and performs the rewinding process in step ST29. FIG. 6 is a flowchart showing details of the rewinding process in step ST29. When the tape rewinding operation is started in step ST601 and the end of rewinding is instructed in step ST602, the tape rewinding operation is stopped in step ST603. In FIG. 2, after the rewinding operation is completed, in step ST30, the preliminary reproduction operation is automatically performed to read the information signal.

The same applies to the case of fast-forwarding, and step S in FIG.
At T31, ST32, and ST33, the fast-forward operation and the preliminary reproduction operation are performed. FIG. 7 shows the step ST32.
5 is a flowchart showing details of a fast-forward operation process of FIG.
The processing of FIG. 7 is almost the same as that of FIG.

As described above, after the rewinding operation and the fast-forwarding operation of the tape 11, the preliminary reproduction is automatically performed, the information signal is reproduced, and the time code and the date are read, so that the system control circuit 26 is now Since the reproduction position of the tape 11 and the program data can be detected, the user can know such information after rewinding or fast-forwarding, without instructing reproduction. Further, after that, when the table of contents is displayed or the program is reproduced at the beginning, it is not necessary to perform the preliminary reproduction, so that the processing time can be shortened.

In FIG. 2, when the user gives an instruction to reproduce the tape 11 from the operation section 27, the system control circuit 26 detects the instruction in step ST26 and performs the reproducing operation in step ST27. Figure 8
It is a flow chart which shows the details of the reproduction processing of this step ST27. The reproduction process is started in step ST801, and the user gives an instruction from the operation unit 27 to execute the processes in steps ST802 and ST803. As necessary, the title, recording date and time, time code value, and tape address of the program being reproduced. Information signals such as information can be displayed on the monitor screen or the display unit 28 for viewing. Also, by the processing of steps ST804 and ST805, it is possible to display the contents recorded on the tape while reproducing the contents. Further, by the processing of steps ST806, ST807, and ST808, the cueing operation can be continuously performed.

In FIG. 2, when the user gives an instruction to make a recording reservation by the operation unit 27, the system control circuit 26 detects the instruction in step ST34 and moves the process to step ST35. The user inputs the date and time of the program to be recorded, the channel, the recording mode, etc. through the operation unit 27. In this case, a program code such as a G code may be input. After the user makes a recording reservation, the system control circuit 26 generates a recording start command at the reserved date and time, detects the command in step ST38, and starts the recording operation.

FIG. 9 is a flow chart showing details of the recording reservation operation process in step ST35. In step ST902, the user inputs the date or day of the week, the recording start time, the recording time or the recording end time, the channel, the recording mode, etc., in step ST902. Of course, instead of these, the user may input a program code called a G code. When the data for the recording reservation is input, the system control circuit 26 searches the memory 20 for the input day of the week,
Program data having the same time and recording time are searched for (step ST903). When the matching program data is found in the memory 20, the title name of the program is read out and displayed by being superimposed on the video signal output, or output by the display unit 28 and displayed (step ST905). As a result, if the displayed title matches the title of the program to be reserved for recording, the user operates the operation unit 27 to perform step ST.
In step 906, that is instructed, and the title is registered as recording reservation data (step ST909). If there is no matching program data in the memory 20, or if the displayed title is different from the title of the program to be reserved for recording, the user operates the operation unit 27 to step ST9.
By the processing of 07 and ST908, the program title is input.

In the processing of step ST904, when a plurality of matching program data are retrieved,
In step ST905, these program titles may be displayed at once or sequentially so that the user can select a desired program title using the operation unit 27.

As described above, according to the processing of FIG. 9, the program title previously input is automatically displayed for the program of the same time and the same channel on the same day of the week, so that it is necessary to input it again. It is convenient without.

FIG. 10 is a flow chart showing the details of another example of the recording reservation process of step ST35.
In the processing flow of FIG. 10, steps ST1009, ST
At 1010, the user can input from the operation unit 27 whether or not to register the input program title. When the user instructs registration, the system control circuit 2
6 adds information indicating that it has been registered (for example, a flag of “0” or “1”) to the program data and stores it in the memory 20 at the time of recording. Memory search process from next time ST10
In 04, only the registered program data is searched. Note that the other processing operations are the same as those in FIG. 9, so description thereof will be omitted.

As described above, according to the processing of FIG. 10, the user can select whether or not to register the program title. Therefore, for example, when recording a program that is continuously broadcast every week, the program title can be registered, and for a one-time broadcast program, the input program title can be not registered, which is convenient.

FIG. 11 is a flowchart showing the details of still another example of the recording reservation process of step ST35. The process flow of FIG. 11 is to select a program from the table of contents display of programs recorded in the past and make a recording reservation. In step ST1101, the user operates the operation unit 2
When it is instructed to make a recording reservation on the table of contents screen by 7, the system control circuit 26 makes a step ST1.
By the processing of 102, the data of the program recorded on the currently inserted tape 11 is read from the memory 20 and displayed in the table of contents. While watching the table of contents display, the user uses the operation unit 27 to input the number of the desired program in step ST1.
Input at 103. If the desired program is not displayed in the table of contents, the user can perform steps ST1104 and ST110.
5, By the processing of ST1106, the program number can be designated by using the index display of the program recorded on another tape. When the program is specified, the system control circuit 2
In step ST1107, 6 reads the day of the week, time, channel, recording time, recording mode, program title, and genre of the designated program from the memory 20 and sets it as recording reservation data.

By the above processing of FIG. 11, the user can easily make a recording reservation by utilizing the program data recorded so far. Further, since the table of contents of the tape currently inserted in the VTR is first displayed, the reservation procedure becomes simpler and convenient, for example, when continuously recording weekly programs on one tape.

FIG. 12 is a flowchart showing the details of still another example of the recording reservation process of step ST35. In the processing flow of FIG. 12, recording reservation is performed on the table of contents screen. In step ST1201, when the user instructs the operation unit 27 to make a recording reservation on the table of contents screen, in step ST1202, the system control circuit 26 searches the data in the memory 20 to find a program having the same day, time, and title. Data is searched for, and a list of program data of programs having a large number of recording times in the past (or a reserved recording frequency may be displayed) is displayed. If they cannot be displayed at once, they may be displayed separately. Then, in step ST1203, the user selects a desired program from the display contents by the operation unit 27, so that in step ST1204, the system control circuit 26 causes the system control circuit 26 to select the day, time, channel, etc. of the designated program. The recording time, recording mode, program title, and genre are read and used as recording reservation data.

As described above, according to the processing of FIG. 12, the user does not need to input reservation data for a program that has been recorded (or reserved) in the past, and a program with a high recording frequency is given priority. Since the table of contents is displayed, the reservation recording procedure is extremely simple and convenient.

The example in which the reserved programs are selected by displaying the table of contents by tape or by recording frequency has been described above. In addition, past recording is performed by day of the week, channel, program genre, or closer to the recording date. It is possible to select the reserved program by displaying the selected program data in the table of contents.
It is obvious to those skilled in the art that these can be easily realized by changing the process by the system control 26 of FIG. 1 in the present embodiment.

Further, in the state in which recording on a plurality of tapes 11 is completed with this VTR, in step ST2 of FIG.
When the user gives an instruction to display the entire table of contents using the operation unit 27,
The system control circuit 26 reads the program data from the memory 20 by the process of step ST3, and displays the table of contents of the recorded program for each tape. Therefore, the user can know the contents of the program recorded on each tape without inserting the plurality of tapes into the VTR and playing them.

When the user turns off the power in step ST42, the latest reproduced information signal is held in the system control circuit 26 or the memory 20. By doing this, the user turns off the power while the tape 11 is still inserted in the VTR, and the step ST
When the power is turned on at 1, since the last information signal is retained, it is not necessary to perform the preliminary reproduction and the identification of the tape number again after the power is turned on again. In this case, after the power is turned on again, the system control circuit 26 detects from the output from the tape insertion detection circuit 24 that the tape is inserted in step ST4, and the process is performed in step S
Since the process shifts to T16, the preliminary reproduction and the tape identification process can be omitted and the process can be simplified.

Next, another VTR having the same function as this VTR
The case of playing back the tape recorded in (4) with this VTR will be described.

In this case, the information signal is recorded on the tape 11, but the corresponding program data is not stored in the memory 20, so the user first creates the table-of-contents data.

Preliminary reproduction step S after insertion of the tape 11
At T6 and ST10, the recorded information signal is reproduced, but the corresponding data is not stored in the memory 20, so no coincident data is detected at steps ST9 and ST13, and the process proceeds to step ST18. Here, it is possible for the user to register the tape on the operation unit 2.
System control circuit 2 when instructed by 7.
6 assigns a new tape number in step ST19. Next, in step ST20, the user operates the operation unit 27.
When the instruction to create a table of contents is issued, the system control circuit 26 performs a table of contents creation process in step ST21.

FIG. 13 is a flow chart showing the details of the table of contents creating process in step ST21. This FIG.
The processing flow of is described. First, in step ST1301, the system control circuit 26 starts the tape 11
Rewind to the beginning. Then, in step ST1302, the variable N representing the serial number of the program is initialized to 1, and in step ST1303, the tape reproduction is started.
Step ST1304 is a process of detecting the beginning part of the program. Specifically, the control signal recorded by the control head 14 at the time of recording is reproduced by the head 14 and the control signal reproduction processing circuit 23, and the cue signal added to the control signal is detected. Instead of detecting the cue signal, a portion where the date and time of the information signal is discontinuous may be detected. Upon detecting this beginning portion of the program, the system control circuit 26 stores the tape number and the information signal of the beginning portion of the program in the memory 20 in step ST1305. At this time, if the time code is not recorded, the tape running time calculated from the reel rotation is stored in the memory 20.

While watching the reproduced video signal, the user
When a program title (or genre, or both of them, the same applies hereinafter) is desired to be input, that effect is instructed from the operation unit 27 in step ST1306. Then, in step ST1307, the system control circuit 26 stores the title information input by the user from the operation unit 27 in the memory 20. If the user does not input the title, this process is omitted. Next, the system control circuit 26 increments the program number N in step ST1308, and in step ST130
At 9 the beginning of the next program is started. During this time, if the tape end is not detected in step ST1310, the process returns to step ST1304 to repeat the above-described operation, and data is sequentially stored in the memory 20 for each recorded program.

By the above operation, the program data recorded on the tape is sequentially stored in the memory 20. Also,
You can also create a table of contents for tapes that do not have timecode recorded. Also, step ST1305
In the process of (1), when the beginning part of the (N + 1) th program is detected, the information at the end of recording the Nth program and the recording time are calculated and stored in the memory 20, and the information is displayed at the time of displaying the table of contents. You may allow it. Note that the title can be input separately in steps ST36 and ST37 of FIG. 2, so step ST130
6 and ST1307 may be omitted.

FIG. 14 shows a VT according to the second embodiment of the present invention.
FIG. 3 is a block diagram showing a main circuit configuration of R. In the figure, 34 is an information signal presence / absence detection circuit for detecting whether or not an information signal is multiplexed with an input signal, and 35 is an information signal from the information signal recording processing circuit 4 according to the output result of the information signal presence / absence detection circuit 34. Is a switch circuit for controlling whether or not to output to the information signal multiplexing circuit 7, and 36 is a title signal generating circuit. The other components are the same as those in the embodiment of FIG. 1, and the same parts are designated by the same reference numerals, and the description thereof will be omitted.

In the embodiment of FIG. 1, information signals such as date, time, program title, etc. are generated inside the VTR or input by the user and multiplexed with the video signal. It is conceivable that a video signal in which an information signal is previously multiplexed is input to the present VTR by the processing of the device on the side (for example, processing of a broadcasting station or processing of a video signal generating source such as another VTR). In the following description, there will be described a case where some video signals input to the VTR include information signals such as date, time, program title, etc., which are pre-multiplexed and some are not.

In the embodiment shown in FIG. 14, the information signal is multiplexed in the VTR for the video signal input in which the information signal is not multiplexed, and the video signal input in which the information signal is pre-multiplexed is used. Recording is performed without multiplexing the information signals in the VTR.

FIG. 15 is a flow chart showing the operation of the recording process in the second embodiment. In step ST1502, the system control circuit 26 detects from the output from the information signal presence / absence detection circuit 34 whether or not the information signal is multiplexed with the input video signal, and if it is multiplexed, the switch circuit 35. Is controlled so that the information signal multiplexing circuit 7 does not multiplex information signals such as the type of input signal, channel, date, time, title, etc. (step ST1503). However, the time code signal is multiplexed in a position different from the position where the information signal is already multiplexed in the vertical blanking period (for example, a position separated by several scanning lines). On the contrary, if the information signal is not detected, in step ST1505, the information signal generated in the VTR, such as the type of input signal, channel, date, time or title signal input by the user, is multiplexed with the video signal. The switch circuit 15 is controlled so as to output a signal to be recorded (the upper terminal is selected in FIG. 14), the information signal read by the information signal reproduction processing circuit 17, the time code value, the tape address information, the recording mode, etc. Is stored in the memory 20 to create program data (steps ST1504, ST1506, ST1).
509).

According to the process of FIG. 15 according to the second embodiment, when the information of the program is previously multiplexed by the process of the broadcasting station or the like, this is automatically stored in the memory 20 as the program data. Therefore, in this case, the user does not need to input the title and the like, and the procedure of creating the table of contents can be simplified, which is convenient. Therefore, the user only has to input the program information as needed only when the program information is not multiplexed.

FIG. 16 is a flow chart of a process for displaying the program data of the program being broadcast by the VTR of the second embodiment as a table of contents. When the processing execution instruction from the user is detected in step ST1601, the system control circuit 26
While sequentially switching the channels of the TV tuner 5, the information signal reproduction processing circuit 17 reads the information signal multiplexed in the video signal of each channel, and the memory 2
The contents are stored in 0, and the contents are displayed superimposed on the video signal or displayed on the display unit 28 (steps ST1603, ST1604, ST1605).
When the user wants to check the broadcast contents being broadcast on each channel, it was troublesome because the user had to make a judgment by watching the broadcast contents while switching the channel by himself.
For example, although the contents of the program were not known when the CM was accidentally broadcast at the time of channel switching, according to the process of FIG. 16, the channels were automatically searched sequentially and the information multiplexed by the broadcasting station into the video signal was detected. From the signal, the program contents can be displayed in a list in text.

The details of the circuit operation and the operation processing of the other parts of the second embodiment of FIG. 14 are the same as those of FIGS. 1 to 13 described in the first embodiment, and also in this embodiment. Since the same effect as the above is obtained, the description thereof will be omitted to avoid duplication.

FIG. 17 shows a VT according to the third embodiment of the present invention.
FIG. 3 is a block diagram showing a main circuit configuration of R. In the second embodiment of FIG. 14, it is assumed that whether or not the information signal is multiplexed in the input signal is detected and the multiplexing of the information signal in the VTR is controlled, but the third embodiment of FIG. 17 is It is possible to read the multiplexed information signal and re-multiplex the data read at the time of recording on the tape.

In FIG. 17, the input signal to the information signal multiplex circuit 7 is connected to the upper terminal of the switch circuit 15, and the information signal reproduction processing circuit 17 has already applied the input signal to the VTR to the video signal. Read the multiplexed information signal. When recording on the tape 11, the date / time and program title data read by the information signal reproduction processing circuit 17 are loaded into the date / time signal generating circuit 2 and the title signal generating circuit 36, respectively. A time code is added to this and multiplexed on the video signal. That is, the same information as the information previously multiplexed in the input signal is multiplexed for the date, time, and program title. At this time, if the information signal read from the input signal is once held and then multiplexed in the next vertical blanking period, it is recorded on the tape 11 without changing the position of the scanning line for multiplexing the information signal. be able to.

According to the third embodiment, since the information signal is newly recorded at the time of recording, it is possible to prevent malfunction due to deterioration of the waveform of the information signal. At that time, the date and time and the title information are recorded as they are, but the time code has a value corresponding to the position information of the recording tape. Therefore, for example, a video camera integrated type V having a function of multiplexing information signals is used.
When recording a video recorded in TR while editing it with this VTR, the recording date and title are not changed,
You can manage tapes by time code.

[0085]

As described above, according to the present invention, information signals such as date, time, title, and time code are multiplexed on a video signal and recorded on a tape, and these information signals are stored in a memory in a VTR. Since the contents can be stored and displayed in the table of contents, the user can know the contents recorded on the tape without inserting the tape and reproducing it.

Further, since the tape number is identified on the basis of the information such as the date, the time, or the time code, there is no need for a conventional bar code reading device.

Furthermore, by selecting a program while looking at the table of contents display, it is possible to cue the program or input a recording reservation, so that these operations can be simplified.

In general, it is possible to realize a user-friendly VTR in which the management of the tape and the retrieval of the tape contents are easy and reliable, and the beginning of the program and the recording reservation can be extremely easily realized, and its value is great.

[Brief description of drawings]

FIG. 1 is a block diagram showing a circuit configuration of a main part of a VTR according to a first embodiment of the present invention.

FIG. 2 is a processing flowchart diagram of the overall operation of the VTR according to the first embodiment of the present invention.

FIG. 3 is a flowchart showing details of a process of a preliminary reproduction operation in the flowchart of FIG.

FIG. 4 is a flowchart showing details of a recording operation process in the flowchart of FIG.

5 is an explanatory diagram showing an example of a display screen output from an output terminal 31 in the VTR of FIG.

FIG. 6 is a flowchart showing details of processing of a rewinding operation in the flowchart of FIG.

FIG. 7 is a flowchart showing details of processing of a fast-forward operation in the flowchart of FIG.

FIG. 8 is a flowchart showing details of processing of a reproducing operation in the flowchart of FIG.

9 is a flowchart showing details of an example of processing of a recording reservation operation in the flowchart of FIG.

10 is a flowchart showing the details of another example of the recording reservation operation process in the flowchart of FIG.

11 is a flowchart showing the details of still another example of the processing of the recording reservation operation in the flowchart of FIG.

FIG. 12 is a flowchart showing the details of still another example of the processing of the recording reservation operation in the flowchart of FIG.

FIG. 13 is a flowchart showing details of processing of a table of contents creating operation in the flowchart of FIG.

FIG. 14 is a block diagram showing a circuit configuration of a main part of a VTR according to a second embodiment of the present invention.

FIG. 15 is a flowchart showing details of the processing of the recording operation according to the second embodiment of the present invention.

FIG. 16 is a flow chart diagram showing details of a program list display operation during broadcasting according to the second embodiment of the present invention.

FIG. 17 is a block diagram showing a circuit configuration of main parts of a VTR according to a third embodiment of the present invention.

[Explanation of symbols]

 2 Date / time signal generation circuit 3 Time code signal generation circuit 4 Information signal recording processing circuit 7 Information signal multiplexing circuit 8 Video signal recording / reproduction processing circuit 11 Magnetic tape 12, 13 Magnetic head 17 Information signal reproduction processing circuit 18 Character signal addition Circuit 19 Character signal generation circuit 20 Memory 26 System control circuit 34 Information signal presence / absence detection circuit 36 Title signal generation circuit

Claims (4)

[Claims] 1. A magnetic recording / reproducing apparatus capable of recording and reproducing a video signal and an information signal on a magnetic tape, and a memory means for storing the information signal when the information signal is recorded on the magnetic tape. A magnetic recording / reproducing apparatus comprising: identification means for identifying a tape based on the information signal reproduced from the tape; and display means for displaying a list of the information signals read from the memory means for each tape. 2. The information signal according to claim 1, wherein the information signal is information indicating a content of a video signal to be recorded and a recording position of a magnetic tape, and the image displayed by the user by the display means. It is characterized by further comprising: designating means for designating a desired video content with reference to the signal content list display; and means for retrieving and reproducing the recording position of the video of the content selected by the designating means. Magnetic recording / reproducing device. 3. A video signal and an information signal can be recorded and reproduced on a magnetic tape, and when the information signal is recorded on the magnetic tape, memory means for storing the information signal and read from the memory means A magnetic recording / reproducing apparatus having a display means for displaying a list of the information signals, wherein the information signals stored in the memory means are recording conditions such as recording date or day of the week, time, broadcast channel, title and recording mode. Based on the recording condition designated by the designating unit, which designates a desired recording condition from among the past recording conditions displayed by the display unit by the user. And a means for performing recording, and a magnetic recording / reproducing apparatus. 4. A magnetic recording / reproducing apparatus capable of recording and reproducing an input video signal on a magnetic tape, and detecting means for detecting whether or not an information signal is multiplexed with the input video signal, Information signal generating means for generating the information signal; multiplexing means for multiplexing the information signal from the information signal generating means with the input video signal; and multiplexing processing of the information signal with the input video signal. And a means for controlling based on the detection result of the detecting means, and when the information signal is not multiplexed with the input video signal, the information signal generated by the information signal generating means is recorded. A magnetic recording / reproducing apparatus characterized by being multiplexed with a video signal input.