JP2003069943A - Video signal recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video signal recording and reproducing device that can read and display even program guide information with respect to a broadcast program recorded with other video signal recording and reproducing device. SOLUTION: The video signal recording and reproducing device includes a removable recording medium 28, a removable storage element 37, a means that records the video signal of a broadcast program and an identification signal on the recording medium in response to recording operations, and a means that records the identification signal and the program guide information of a broadcast program to be stored in the recording medium to the storage element.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video signal recording / reproducing apparatus for recording / reproducing a video signal of a broadcast program, and more particularly,
The present invention relates to a video signal recording / reproducing device having a function of displaying program guide information of a broadcast program during reproduction.

[0002]

2. Description of the Related Art As a video signal recording / reproducing apparatus for selectively reproducing a video signal or an audio signal of a recorded broadcast program on a program-by-program basis, a storage element is provided, and the recording date / time and channel are set every time the apparatus enters a recording state. The progress status of the cassette tape is stored in the storage element as program guide information, and the recorded broadcast program is checked by displaying the program guide information stored in the storage element on a display device and designating a target broadcast program to be reproduced. A video signal recording / reproducing apparatus has been proposed in which information is input by an input device such as a keyboard, and a broadcast program to be reproduced is automatically searched for and reproduced based on the designated information.

An apparatus of this type is disclosed in Japanese Patent Laid-Open No. 3292/1996.
No. 2 publication. A device having a detachable external storage device for a video game is disclosed in Japanese Patent Laid-Open No. 8-83.
There is a video game device as disclosed in Japanese Patent Publication No. 0. Further, as an apparatus having an external storage element in which type indexes of moving images and still images, start information, and end information are recorded, moving images and still images can be mixedly recorded as disclosed in Japanese Patent Laid-Open No. 2000-201318. There is a recording / reproducing apparatus for various recording media.

[0004]

According to these conventional techniques, each video signal recording / reproducing apparatus has an identification number unique to the device, and a cassette tape recorded by the video signal recording / reproducing apparatus is unique to the video signal recording / reproducing apparatus. Is recorded on the tape. On the other hand, the recording start date and time, the day of the week, the channel, whether or not the audio is multiplexed, the recording mode, etc., which are the program guide information, are stored in a non-detachable storage element provided inside the video signal recording / reproducing apparatus. Therefore, when retrieving the program guide information, the program guide information cannot be retrieved unless the identification numbers of the tape to be reproduced and the video signal recording / reproducing device for reproducing the tape match.

Therefore, the recording guide information relating to the broadcast program recorded on the cassette tape can be obtained from the storage element only for the recording / reproduction by the own device. However, regarding the cassette tape recorded by the other video signal recording / reproducing apparatus, the identification number of the tape to be reproduced does not match the identification number of the video signal recording / reproducing apparatus for reproducing the tape.
Since the program guide information is not stored in the storage element inside the video signal recording / reproducing apparatus to be reproduced, the program guide information of the cassette tape cannot be read and displayed.

An object of the present invention is to provide a video signal recording / reproducing apparatus capable of reading out and displaying the program guide information of program guide information relating to a broadcast program recorded by another video signal recording / reproducing apparatus. To do. Another object of the present invention is to provide a video signal recording / reproducing apparatus capable of sharing information of one external storage element among a plurality of video signal recording / reproducing apparatuses. Still another object of the present invention is to provide a video signal recording / reproducing apparatus capable of transferring the stored program guide information between the video signal storing / reproducing apparatuses having an external storage element. Still another object of the present invention is to provide a video signal recording / reproducing apparatus capable of transferring program guide information recorded by one external storage element to another external storage element. Still another object of the present invention is to provide a video signal recording / reproducing apparatus in which storage elements are additionally installed.

[0007]

The present invention relates to a removable recording medium and a removable first storage element, and in response to a recording operation, a video signal of a broadcast program on the recording medium and the recording medium, A means for recording a common identification signal in the first storage element, and means for recording the identification signal and program guide information of a broadcast program to be recorded in the recording medium in the first storage element. Is a video signal recording / reproducing apparatus.

According to the present invention, the recording medium recording the video signal of the broadcast program and the identification signal common to the recording medium and the first storage element, and the identification signal and the program guide information of the broadcast program are recorded. Means for mounting the first storage element in a predetermined position, the identification signal recorded in the recording medium in response to a reproducing operation, and the identification recorded in the first storage element A video signal recording / reproducing apparatus comprising means for reading out the program guide information of the broadcast program recorded in the first storage element and outputting it to a display device when the signals are compared and coincident with each other. .

The present invention further comprises a second storage element built in the apparatus, and in response to a recording operation, the identification signal and program guide information of a broadcast program to be recorded in the recording medium. The video signal recording / reproducing apparatus is provided with a means for recording and recording and then transferring to the removable first storage element.

The present invention is provided with an external connection means for connecting to another video signal recording / reproducing apparatus, and through the external connection means, the identification information and the program guide information with the other video signal recording / reproducing apparatus. It is a video signal recording / reproducing apparatus characterized in that they are mutually transferable.

The present invention is a video signal recording / reproducing apparatus comprising a plurality of connection terminals for mounting a plurality of the removable first memory elements.

The present invention comprises a connection terminal for mounting the removable first storage element, and an external connection terminal for connecting to another video signal recording / reproducing apparatus, and the connection terminal and the external connection. The video signal recording / reproducing apparatus is characterized in that the terminals have substantially the same shape.

According to the present invention, a plurality of first storage elements are attached to each of the plurality of connection terminals, and the identification information and the program guide information can be mutually transferred between the attached first storage elements. The video signal recording / reproducing apparatus is characterized in that

According to the present invention, an insertion opening for mounting the removable first storage element is installed on the front panel, and the first storage element is inserted into the insertion opening for mounting. And a video signal recording / reproducing device.

The present invention further comprises a second storage element built into the apparatus, wherein the first storage stores the identification signal and program guide information of a broadcast program to be recorded on the recording medium in response to a recording operation. The video signal recording / reproducing apparatus is characterized in that recording is separately performed on an element and the second storage element.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a circuit configuration of a main part of a first embodiment of a video signal recording / reproducing apparatus of the present invention. FIG. 1 shows a video signal recording / reproducing apparatus when the recording medium is a cassette tape.

In FIG. 1, 1 is a video signal input switching control circuit, 2 is a date / time signal generation circuit, 3 is an absolute address signal generation circuit, 4 is a TV tuner, 5, 10 and 11 are video signal switching circuits, and 6 is Information signal recording processing circuit, 7 information signal multiplexing processing circuit, 8 video signal recording / reproducing processing circuit, 9 character signal adding circuit, 12 character signal generating circuit,
Reference numeral 13 is a video signal presence / absence detection circuit, 14 and 14A are external connection terminals, 15 is an information signal reproduction processing circuit, 16 is an irremovable internal memory, and this internal memory has a unique identification number. Reference numeral 17 is a control signal recording processing circuit, 18 is a control signal reproducing processing circuit, 19 is a control signal switching circuit, 20 is a system control circuit, 21 is an operating section, 22 is a reel rotation number detection circuit,
23 is a tape cassette insertion detection circuit, 24 is a control head, 25 and 26 are video heads, 27 is a tape cassette, 28 is a cassette tape, 29 is a take-up reel, 30
Is a supply reel, 31 is an erasure prevention mode detection circuit, 32
Is a TV broadcast signal input terminal, 33 is an external video signal input terminal, 34 is a video signal output terminal, 35 is a video signal recording / reproducing device, 36 is a display device connected to the external connection terminal 14A of the video signal recording / reproducing device 35, An external memory 37 is detachably connected to the external connection terminal 14 of the video signal recording / reproducing device 35.

Here, as is well known, the tape cassette 27 contains a cassette tape 27 whose both ends are fixed to a take-up reel 29 and a supply reel 30, and can be mounted and removed from the outside at the illustrated position. In addition, the operation unit 21
For example, a power button (switch button) configured by a remote control device for instructing power on / off, a tape navigation button for instructing a navigation function for displaying recording status of a cassette tape and supporting recording / playback selection, recording contents A list display button for instructing to display a list, a program selection button for instructing selection of a target recorded program, a recording button for instructing recording, a playback button for instructing playback, and a stop button for instructing to stop recording or playback. Each of these buttons
If necessary, it is provided independently and exclusively, or is provided so as to also serve as other buttons.

The display device 36 is an external television image monitor device such as a CRT display device. The erroneous erasure prevention mode detection circuit 31 detects the presence or absence of the erroneous erasure prevention tab of the tape cassette 27. The audio signal system is the same as that of the conventional device, and therefore the description thereof is omitted.

Recording / reproducing control and external memory control in the video signal recording / reproducing apparatus 35 will be described with reference to FIG. When the user operates the power button of the operation unit 21 to instruct to power on, the system control circuit 20 powers on the video signal recording / reproducing apparatus. Next, the tape cassette 27 set in the device
Check the existence of. The presence or absence of the cassette tape 27 is detected by the system control circuit 20 monitoring the output signal of the tape insertion detection circuit 23.

Next, recording will be described. The recording instruction input by the recording button of the operation unit 21 is monitored, and the recording process is performed when the recording instruction is input. This recording processing step is first executed to confirm whether the cassette tape 28 is in the erroneous erasure prevention mode, and is executed when the cassette tape is not in the erroneous erasure prevention mode. And the identification number (tape number) unique to the tape that has already been assigned
The program guide information such as the date and time when the recording starts, the day of the week, the channel, and the absolute address of the current position from the beginning of the tape winding are automatically recorded in the internal memory 16 and the external memory 37.

Next, the movement of the cassette tape 28 for recording is started, and at the same time, the absolute address signal generating circuit 3 starts counting the absolute addresses. Further, the control signal recording processing circuit 17 is controlled so that the control head 24 records the cueing signal on the cassette tape 28. During recording, a video signal and an audio signal in which the unique identification number (tape number) of the cassette tape 28 and the absolute address of the current position of the cassette tape are multiplexed are recorded on the cassette tape 28.

A recording stop instruction input from the operation unit 21 is monitored, and when the recording stop instruction is input, the cassette tape 28
And the absolute address signal generation circuit 3 stops the absolute address counting, and the recording is completed.

In this way, the video signal recording / reproducing device 35 is used.
At the time of recording, during recording, the video signal of the broadcast program and the identification signal unique to the tape are recorded on the cassette tape 28, and the identification signal unique to the tape and the program guide of the broadcast program to be recorded on the tape are stored in the internal memory 16 and the external memory 37. Record recording information such as information.

Next, the presence / absence of the external memory 37 is searched, and preliminary reproduction / recording information is acquired. First, the presence / absence of an external memory is searched, and then the recording information stored in the external memory 37 is searched. If the external memory is not mounted, the display device 36 displays that fact, and then the internal memory 16 is searched.

Next, preliminary reproduction / recording information acquisition is performed. In this preliminary reproduction / recording information acquisition processing, the signal reproduced by the magnetic heads 25 and 26 after starting preliminary reproduction is reproduced by the video signal recording / reproduction processing circuit 8 and recorded by the information signal reproduction processing circuit 15. It is extracted and output to the system control circuit 20. The system control circuit 20 acquires the recording information input from the information signal reproduction processing circuit 15 and holds it in the internal memory 16 and the external memory 37. The system control circuit 20
After the preliminary reproduction process is executed for a predetermined time, the running of the cassette tape 28 is automatically stopped and the preliminary reproduction is finished.

The system control circuit 20 confirms the presence or absence of the recording information acquired and held in the preliminary reproduction,
When there is recording information, the absolute address of the detected recording information is set in the absolute address signal generating circuit 3 and the internal memory 16
Alternatively, the recording information stored in the external memory 37 is searched.

Here, the internal memory 16 or the external memory 3
It is confirmed whether or not the recording information retrieved from 7 coincides with the identification number peculiar to the tape reproduced from the cassette tape 28. If there is a coincidence, the program guide information having the coincident tape identification number is stored in the internal memory 16 or It is acquired from the external memory 37.

Next, in accordance with an instruction to display a list in the navigation function from the operation unit 21, the recording state of the cassette tape 28 is converted into the screen displayable signal obtained from the internal memory 16 or the external memory 37 and output. Then, the list is displayed on the external display device 36.

In the list display, it is confirmed whether or not there is an instruction input of the selection decision button for the target recorded program instructed by the program selection button of the operation unit 21, and when the target recorded program is instructed, the selected instructed target Acquire the position information where the recorded program is recorded and reach the position by cassette tape 2
Fast forward 8 and cue.

Specifically, first, the recording start / end unit data is read from the internal memory 16 or the external memory 37, and the target absolute address is set. And the internal memory 1
6 or the target absolute address read from the external memory 37 and the cassette tape 28 are moved toward the recording start / end unit. The tape moving time is calculated from the difference between the current absolute address of the cassette tape 28, the calculated moving time is compared with the moving time calculated by counting the CTL signal during the movement of the cassette tape, and if the both match, the cassette is moved. The current absolute address of the tape 28 is read, the absolute address is compared with the target absolute address, and if they match, the movement of the cassette tape 28 is stopped and the cueing is completed.

Next, reproduction will be described. A reproduction instruction input from the reproduction button of the operation unit 21 is monitored, and when the reproduction instruction is input, the cassette tape 28 is driven to execute the reproduction processing. The reproduction stop instruction input is monitored, and when the reproduction stop instruction is input, the driving of the cassette tape 28 is stopped to end the reproduction.

In this way, the video signal recording / reproducing device 35 is used.
At the time of reproduction, in the above-described preparatory reproduction, the identification signal recorded on the cassette tape 28 is compared with the identification signal stored on the internal memory 16 or the external memory 37. Since the program guide information of the stored broadcast programs is output for reading and displaying, it is possible to display a list on the external display device 36.

Thus, the video signal recording / reproducing device 35
Has an external memory 37 which can be attached to and detached from the external connection terminal 14, and compares the identification signal recorded on the tape at the time of reproduction with the identification signal stored in the external memory, so that the cassette tape and the external memory are the same. In the case of a medium on which information about a broadcast program is recorded, the program guide information of the broadcast program can be output for reading and displaying, and the video signal of the desired broadcast program can be reproduced.

Therefore, this video signal recording / reproducing device 35
When it is desired to reproduce a cassette tape recorded with a video signal of a broadcast program by another video signal recording / reproducing apparatus 35A (not shown in FIG. 1) similar to the above, the tape cassette 27 is used. When the external memory 37 is removed, another tape cassette is attached to the other external memory, and reproduction operation is performed, when the other tape cassette and the other external memory are recording information on the same broadcast program, both can be identified. Since the signals are the same, they match when compared. Therefore, even with a cassette tape in which a video signal of a broadcast program is recorded by another video signal recording / reproducing device 35A (not shown in FIG. 1), this video signal recording / reproducing device 35
It is possible to display the program guide information and to reproduce the video signal of the desired broadcast program.

In this embodiment, the internal memory 16 is provided in addition to the external memory 37.
It can be recorded once in an external memory and then transferred to an external memory for duplication.

In addition to the external memory 37, the internal memory 1
6 is provided, it is possible to increase the recording capacity of the program guide information of the broadcast program by connecting in parallel and having the same identification signal.

FIG. 2 is a block diagram showing a circuit configuration of a main part of the second embodiment of the video signal recording / reproducing apparatus of the present invention. The video signal recording / reproducing device 35 further includes external connection terminals 14B and 14C. External connection terminal 14
C is another video signal recording / reproducing device 3 via the connection cable 38.
If connected to 5A, both system control circuits 2
Since the identification information and the program guide information can be mutually communicated and shared by the mutual control of 0, the tape navigation function can be used for the tape recorded by either video signal recording / reproducing apparatus.

A plurality of external connection terminals 14 and 14B
Is equipped with a plurality of external connection terminals 14 and 1
4B is equipped with external memories 37 and 37A, and the system control circuit 2 is provided between the external memories 37 and 37A.
By setting 0, the system control circuit 20 can transfer mutual identification information and program guide information to control duplication.

Further, the external connection terminals 14, 14B, 14C
Since they have the same shape, the connection cable 38 and the external memories 37 and 37A can be connected to, for example, any external connection terminal without being restricted by the shape.

FIG. 3 is a front view of an embodiment of the external appearance of the video signal recording / reproducing apparatus of the present invention. On the front panel 40,
In addition to the tape cassette insertion opening 41, storage element built-in card insertion openings 42 and 42A and a connection cable insertion opening 42B are provided, and are arranged so as to be connected by being inserted. This is a conventional video signal recording / reproducing apparatus that allows the above-mentioned functions to be utilized, and can improve convenience.

[0042]

According to the present invention, it is possible to obtain a video signal recording / reproducing apparatus capable of reading out and displaying the program guide information concerning the broadcast program recorded by another video signal recording / reproducing apparatus. be able to. Further, according to the present invention, it is possible to obtain a video signal recording / reproducing device capable of sharing information of an external storage element among a plurality of video signal recording / reproducing devices. Further, according to the present invention, it is possible to obtain a video signal recording / reproducing apparatus capable of transferring the program guide information stored in the video signal storing / reproducing apparatus having the external storage element. Further, according to the present invention, it is possible to obtain a video signal recording / reproducing apparatus capable of transferring the program guide information recorded by one external storage element to another external storage element. Further, according to the present invention, it is possible to obtain a video signal recording / reproducing device in which storage elements are additionally installed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a circuit configuration of a main part of a first embodiment of a video signal recording / reproducing apparatus of the present invention.

FIG. 2 is a block diagram showing a circuit configuration of a main part of a second embodiment of a video signal recording / reproducing apparatus of the present invention.

FIG. 3 is a front view of the embodiment of the external appearance of the video signal recording / reproducing apparatus of the present invention.

[Explanation of symbols]

1 ... Video signal input switching control circuit, 2 ... Date and time signal generation circuit, 3 ... Absolute address generation circuit, 4 ... TV tuner,
5, 10 and 11 ... Video signal switching circuit, 6 ... Information signal recording processing circuit, 7 ... Information signal multiplexing processing circuit, 8 ... Video signal recording / reproducing processing circuit, 9 ... Character signal adding circuit, 12 ... Character signal generating circuit , 13 ... Video signal presence / absence detection circuit, 14, 1
4A, 14B, 14C ... External connection terminals, 15 ... Information signal reproduction processing circuit, 16 ... Internal memory, 17 ... Control signal recording processing circuit, 18 ... Control signal reproduction processing circuit, 19 ... Control signal switching circuit, 20 ... System control Circuit, 21 ... Operation part, 22 ... Reel rotation number detection circuit, 23 ... Tape insertion detection circuit, 24 ... Control head, 25, 26 ... Magnetic head, 27 ... Tape cassette, 28 ... Cassette tape, 29 ... Take-up reel, 30 ... Supply reel, 31 ... Accidental erasure prevention mode detection circuit, 32 ... TV broadcast signal input terminal, 33 ... External video signal input terminal, 34 ... Video signal output terminal, 35 ... Video signal recording / reproducing device, 35A ... Other video signal Recording / playback device, 36 ...
Display device, 37, 37A ... External memory, 38 ... Connection cable, 40 ... Front panel, 41 ... Tape cassette insertion slot, 42, 42A ... Storage element built-in card insertion slot, 42B
… Connecting cable insertion port.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04N 5/907 H04N 5/782 K 5D110 5/91 L (72) Inventor Izumi Kuzumi Totsuka Ward, Yokohama City, Kanagawa Prefecture 292 Yoshida-cho, Hitachi, Ltd., Image Information Systems, Inc. (72) Inventor, Kuji Ota, 1410, Inada, Hitachinaka City, Ibaraki Prefecture F-Term (Reference), Hitachi, Ltd. Digital Media Products Division 5C018 FA03 FA04 5C052 AA01 AA17 AB03 AB04 AC08 CC06 DD04 DD08 GA03 GA04 GB01 GB09 GE08 5C053 FA21 FA27 GB06 HA30 JA16 KA05 KA25 LA04 LA06 LA07 LA14 5D044 BC08 CC09 DE17 DE49 DE57 EF05 FG18 HL11 5D077 AA07 DC12 HC05 HC16 HC17 5D110 AA11 BB11 DB04 DA04 DA04

Claims (9)

[Claims] 1. A detachable recording medium and a detachable first storage element, which are common to a video signal of a broadcast program on the recording medium and the recording medium and the first storage element in response to a recording operation. And a means for recording the identification signal and the program guide information of the broadcast program recorded on the recording medium in the first storage element. apparatus. 2. A recording medium for recording a video signal of a broadcast program and an identification signal common to the recording medium and the first storage element, and the identification signal and program guide information of the broadcast program. Means for mounting the first storage element at a predetermined position, the identification signal recorded in the recording medium in response to a reproduction operation, and the identification signal recorded in the first storage element And a means for reading out the program guide information of the broadcast program recorded in the first storage element and outputting the program guide information to the display device when they match each other. 3. The video signal recording / reproducing apparatus according to claim 1, further comprising a second storage element incorporated in the apparatus, wherein the identification signal and the recording are recorded in the second storage element in response to a recording operation. A video signal recording / reproducing apparatus comprising means for recording program guide information of a broadcast program to be recorded on a medium and then transferring it to the removable first storage element. 4. The video signal recording / reproducing apparatus according to claim 2, further comprising an external connecting means for connecting to another video signal recording / reproducing apparatus, and connecting to the other video signal recording / reproducing apparatus through the external connecting means. A video signal recording / reproducing apparatus characterized in that the identification information and the program guide information can be mutually transferred. 5. The video signal recording / reproducing apparatus according to claim 1 or 2, further comprising a plurality of connection terminals for mounting a plurality of the removable first storage elements. Recording / playback device. 6. The video signal recording / reproducing apparatus according to claim 1, wherein a connection terminal for mounting the removable first storage element and an external device for connecting to another video signal recording / reproducing apparatus. A video signal recording / reproducing apparatus comprising a connection terminal, wherein the connection terminal and the external connection terminal have substantially the same shape. 7. The video signal recording / reproducing apparatus according to claim 5, wherein a plurality of first storage elements are mounted on each of the plurality of connection terminals, and the mounted first storage elements are discriminated from each other. A video signal recording / reproducing apparatus characterized in that information and program guide information can be mutually transferred. 8. The video signal recording / reproducing apparatus according to claim 1, wherein an insertion port for mounting the removable first storage element is installed on a front panel, and the first port is provided at the insertion port. A video signal recording / reproducing device characterized by being mounted by inserting a storage element. 9. The video signal recording / reproducing apparatus according to claim 1, further comprising a second storage element incorporated in the apparatus, the broadcast signal being recorded in the identification signal and the recording medium in response to a recording operation. A video signal recording / reproducing apparatus, characterized in that program guide information is recorded separately in the first storage element and the second storage element.