JP2001298705A - Recording and reproducing device and digital broadcast receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problems of the conventional recording and reproducing device and digital broadcast receiver where illegal copies have easily been made and the recording and reproducing capability to the high speed video data has been insufficient. SOLUTION: An instruction circuit 103 extracts information such as a recording position required for recording data to a recording medium 101 or for reading data from the recording medium 101 from four tables as a retrieval information table 105 by each recording unit provided in a recorded information holding means, addition information table 108 by each recording unit, a position information table 106 on the recording medium 101 for the data in each recording unit, and a recordable position information table 107 on the recording medium 101.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data recording / reproducing technique, and more particularly to a recording / reproducing technique used in a digital broadcast receiver.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. H11-39850 discloses a conventional apparatus capable of recording and reproducing an MPEG stream (which comprises an array of data such as video, audio, and accompanying information) adopted in digital broadcasting. Recording and reproducing device. FIG. 18 is a configuration example of a recording and reproducing apparatus based on a computer disclosed in the publication. In FIG. 18, 901 is a microprocessor, 902 is a main memory, 903 is a bus bridge, and 904 is an I / O (Input / Ou).
tput) interface; 905, an auxiliary storage interface; 906, a hard disk connected to the auxiliary storage interface 905; 907, an MPEG real-time encoder board with a built-in TV tuner; 908, an AV processing circuit; (VRAM) used for the above.

[0003] The microprocessor 901, the main memory 902, and the bus bridge 903 are connected to each other via an internal bus, and the remaining blocks are connected to each other via an expansion bus. The bus bridge 903 is
Internal bus and, for example, PCI (Peripheral Component Int)
erconnect) bus and ISA (Industry Standard Archite)
cture) It controls the exchange of data with the extended bus such as a bus.

The auxiliary bus includes an auxiliary storage interface 905 and an MPEG real-time encoder board 90.
7 and an AV processing circuit 908, and a hard disk 906 is connected to the auxiliary storage interface 905.

The microprocessor 901 executes various application programs recorded on the hard disk 906 under the control of the operating system recorded on the hard disk 906, for example, to record, reproduce, edit, and decode images. Processing and other predetermined processing are performed.

[0006] MPEG real-time encoder board 9
07 converts images and sounds in real time, for example,
It encodes according to the MPEG1 standard and has a built-in TV tuner for receiving a television broadcast program.
G encoding can be performed.

The AV processing circuit 908 is, for example, a VGA
(Video Graphics Array), a three-dimensional accelerator (both not shown), and the like, and perform display on a display and audio output to a speaker. The AV processing circuit 908 has a built-in NTSC encoder, and can output an image conforming to the NTSC system to, for example, a VTR.

[0008] The application program recorded on the hard disk 906 records, reproduces,
Processing such as editing and decoding is performed. For example, MPE
The television broadcast program received by the TV tuner of the G real-time encoder board 907 is encoded into an MPEG stream, and the data is recorded on a hard disk 906 via an extension bus. Further, during the recording, the reproduction of an arbitrary scene of the already recorded video (image) is also performed.

[0009]

In the conventional recording / reproducing apparatus configured as described above, since a computer is used as a basis, data recording on a hard disk is executed according to a file system provided by an operating system. Have been. Therefore, the following problems occur.

That is, in the prior art, even if the data to be recorded is video data or additional information related to the content of the recorded video, a file table in which the association is made for every minimum unit handled by the operating system is described. Therefore, when a large-capacity hard disk is used to record video data, there is a problem that the capacity of the file table itself must be very large.

In addition, the frequency of accessing such a large file table must be increased, and in order to obtain a recording speed corresponding to a high definition (HD) video stream used in digital broadcasting, file management is required. There is a need to further increase the speed of hard disk control, including that of a hard disk drive, which requires an expensive CPU.

In addition, there is another problem that the recorded contents can be easily duplicated by copying inside the hard disk or replacing the hard disk.

The present invention has the above problems,
The first object of the present invention is to enable predetermined data recording and to reduce the size of the file system itself without complying with the file system of the operating system of the computer. It is to make. Further, a second object of the present invention is to reduce the frequency of access to the file system itself in recording and reproduction, so that the original operation speed of the hard disk can be sufficiently exhibited without using an expensive CPU, and high-speed video of high definition The goal is to make it compatible with streams. Further, a third object of the present invention is to provide a recording / reproducing apparatus which cannot easily retrieve the recorded contents from another personal computer, and a receiver having the function.

[0014]

The invention according to claim 1 is
A data recording unit that records data to be input, a recording information holding unit that holds information related to data recording, and a data writing position to the data recording unit based on the information held by the recording information holding unit; Instruction means for creating and outputting first and second instruction signals for respectively providing a data reading position from the data recording unit; and data recording control means for controlling data recording on the data recording unit based on the first instruction signal. Data reading control means for controlling reading of data recorded in the data recording section based on the second instruction signal, wherein the recording information holding means stores data in each recording unit on the data recording section. A recording position information storage unit for storing information of the recording position of each of the information storage positions, and the information recording of the recording position information storage unit for each recording unit. A search information storage unit for storing search information including a position, and a recordable position information storage unit for storing information on recordable positions on the data recording unit, and recording of input data in each recording unit In operation,
(A) The instructing means accesses the recording position information storage unit and selects an information storage position to be used this time from among the information storage positions that are free areas, and then selects the search information storage (B) accessing the recordable position information storage unit, and storing the selected information storage position in the search information storage unit as the search information. The recordable position information to be used this time is selected from the position information as the data write position to the data recording unit, and the selected recordable position information is output as the first instruction signal. Accesses the recording position information storage unit, and additionally stores the recording position information on the data recording unit that records the input data in the selected information storage position, and The instructing unit accesses the recordable position information storage unit and deletes the selected recordable position information. On the other hand, in the operation of reproducing recorded data in each recording unit, (d) the instruction unit performs the search. Accessing the information storage unit, confirming at which information storage position on the recording position information storage unit the recording position information for the recording data to be reproduced, based on the information obtained by the confirmation, The recording position information storage unit is accessed to retrieve the recording position information stored in the corresponding information storage position, and the retrieved recording position information is used as the data read position from the data recording unit to create the second instruction signal. And output.

According to a second aspect of the present invention, in the recording / reproducing apparatus according to the first aspect, the data recording section is a recording medium, and the recording information holding means is provided with recording information provided outside the recording medium. A storage circuit, wherein the instruction means directly exchanges signals with the recording information storage circuit.

According to a third aspect of the present invention, in the recording / reproducing apparatus according to the second aspect, the recording medium is a disk-type medium, and the recording information storage circuit can operate at a higher speed than the disk-type medium. Memory circuit.

According to a fourth aspect of the present invention, in the recording / reproducing apparatus according to the first aspect, the recording information holding means has a first recording information holding means and a faster response operation than the first recording information holding means. A second recording information storage unit, wherein the first recording information storage unit stores information corresponding to the recording position information storage unit, the search information storage unit, and the recordable position information storage unit. A first recording position information storage unit, a first search information storage unit, and a first recordable position information storage unit, and the second recording information holding unit includes the first recording position information storage unit and the first recording position information storage unit. A second recording position information storage unit, a second search information storage unit, and a second recordable position information storage, each of which is capable of duplicating information stored in each of a search information storage unit and the first recordable position information storage unit. Can be composed It has a region, when the main power of the recording and reproducing apparatus, said indication means, said first recording position information storage section, the first search information storage unit and the first
The information stored in k (1 ≦ k ≦ 3) information storage units among the recordable position information storage units is extracted, and the second recording position information storage unit, the second search information storage unit, and the Second
The extracted information is stored in k corresponding duplicated information storage units in the recordable position information storage unit, and the first recordable position information storage unit, the first search information storage unit, and the first recordable position are stored. (3-k) information storage units in the information storage unit, and k in the second recording position information storage unit, the second search information storage unit, and the second recordable position information storage unit
A portion including the copy information storage units constitutes three information storage units of the recording position information storage unit, the search information storage unit, and the recordable position information storage unit included in the recording information holding unit. It is characterized by.

According to a fifth aspect of the present invention, in the recording / reproducing apparatus according to the fourth aspect, the data recording section is a recording medium, and the first and second recording information holding means are provided outside the recording medium. First and second storage circuits provided, wherein the instructing means includes the (3-k) information storage units in the first storage circuit and the k pieces of copy information in the second storage circuit. Signals are directly exchanged with the storage unit.

The invention according to claim 6 is the recording / reproducing apparatus according to claim 1, further comprising a recording medium, wherein the recording medium has the data recording section and the recording information holding means therein. It is characterized by having.

The invention according to claim 7 is the recording / reproducing apparatus according to claim 1, further comprising a recording medium, wherein the recording medium includes therein the data recording unit and the recording information holding unit. And a recording information storage circuit provided outside the recording medium.

According to an eighth aspect of the present invention, in the recording / reproducing apparatus according to the first aspect, the search information storage unit stores an index value for each recording unit and a reference value of the recording position information storage unit. At least the entry value is described,
The recording position information storage unit includes the entry value, position information of a previously recorded portion at a continuous position on the data recording unit indicated by the entry value, and the already recorded portion at the entry value. And the next entry value indicating the next already recorded portion is described for each entry value, and the recordable position information storage unit stores the position of the last recorded portion on the data recording unit. The already-recorded continuous portion and the continuous end recording portion are both indicated by the start position and the end position of the continuous portion, and the position information in the middle of the continuous portion is the recording position. It is not described on the position information storage section and the recordable position information storage section.

According to a ninth aspect of the present invention, there is provided a broadcast receiving means for receiving a digital broadcast, and the recording / reproducing apparatus according to any one of the first to eighth aspects connected to an output of the broadcast receiving means. It is characterized by having.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) In this embodiment, a recording information holding means having a table in which various types of recording information relating to data to be recorded / reproduced are recorded is defined as a recording medium (data recording section). Are provided separately, and
It is characterized in that the instructing means directly performs transmission and reception with the recording information holding means. Here, the “data” to be recorded in the recording medium or read from the recording medium and reproduced includes video data, image data including still images and moving images, audio data, and a conventional technology. , May be any of the MPEG streams defined in the column of “.”, But in the present embodiment, for convenience of explanation, the “data”
Is an example of video data. This point is common to all embodiments described later. Hereinafter, the present embodiment will be described with reference to the drawings.

FIG. 1 is a block diagram showing a recording / reproducing apparatus according to Embodiment 1 of the present invention. In FIG. 1, T
Reference numeral 1 denotes an input terminal (first terminal) for receiving a video data signal input from the outside, T2 denotes an output terminal (second terminal) for outputting a video data signal read out during reproduction, and 101 denotes recording of input video data. A recording medium or a data recording section, a recording medium control circuit or a data recording / reading circuit having both a data recording control means and a data reading control means, a reference circuit 103 as an instruction means, and a reference numeral 104 A record information storage circuit as record information holding means for holding a table; 105, a search information table or search information storage unit (first table) for storing search information for each recording unit; 106, data recording in each recording unit A position information table or a recording position information storage section (second position information) for storing information of recording positions on the means for each information storage position. Table 107, a recordable position information table or a recordable position information storage section (third table) for storing information on recordable positions or empty positions on the recording means, and 108 an auxiliary for storing additional information to be described later. It is an information table or an auxiliary information storage unit (fourth table). These four tables 105-108
Is provided in a recording information storage circuit 104 directly connected to the instruction circuit 103, separately from the recording medium 101.

The operation of the recording / reproducing apparatus of the present embodiment having the above configuration will be described.

First, the operation for recording video data (input data) in each recording unit will be described. First, at the start of recording, the instruction circuit 103 directly accesses the position information table 106 and the supplementary information table 108, and makes free space in each of the tables 106 and 108 in which recording position information and supplementary information are not stored. The information storage positions on the position information table 106 and the supplementary information table 108 to be used for the current recording are selected from among the areas, and thereafter, the search information table 105 is accessed to select those information storage positions. The information of the information storage position is stored in the search information table 105 as search information. At the time of subsequent recording, the instruction circuit 103 first accesses the recordable position information table 107 provided in the record information storage circuit 104, and uses the recordable position information in the table 107 to use this time. The recordable position information, that is, an available area on the recording medium 101 is selected as a data write position on the recording medium 101. Thereafter, the circuit 103 instructs the data recording / reading circuit 102 as information of the selected position on the recording medium 101 where the video data is to be recorded as a first instruction signal. Data recording / reading circuit 10 receiving an instruction given by the first signal
Reference numeral 2 records video data coming from the outside in a designated storage location on the recording medium 101. At the same time, the instruction circuit 103 additionally stores the position data (recording position information data) on the recording medium 101 on which the video data has been recorded, at the previously determined information storage position in the position information table 106. Further, the instruction circuit 103 converts, from the information data in the recordable position information table 107, the data indicating the position data on the recording medium 101 on which the current video data is recorded (recordable position information selected this time). Delete. Then, the above operation for each recording unit is repeated for the video data that sequentially arrives, the video data is recorded on the recording medium 101, and the recording position information data indicating the place used for recording is stored in the position information table 106. Will be added and updated.

Next, the operation of the present recording / reproducing apparatus when video data (recording data) in each recording unit is read out from the recording medium 101 and reproduced will be described. First, the instruction circuit 103 accesses the search information table 105 in the recording information storage circuit 104 and, based on the information data stored in the table 105, the recording position information data on the video data to be reproduced is stored in the position information table 106. Check where it is. After the confirmation, the instruction circuit 103 accesses the position information table 106 and extracts the recording position information data of the video data to be read stored at the corresponding position on the table 106 from the table 106.
The extracted recording position information data is instructed to the data recording / reading circuit 102 as a second instruction signal. Upon receiving this instruction, the data recording / reading circuit 102 reads the video data from the location on the recording medium 101 specified by the second instruction signal, and outputs the video data to the outside from the output terminal T2.

Here, in the supplementary information table 108,
For example, additional information including information and attributes for each recording unit, such as a recording date and time, a recording content title, and a description of the recording content, is stored. Note that the additional information is information created by the instruction circuit 103, and the instruction circuit 103 stores the additional information at an arbitrary time in the additional information table 108 at an information storage position selected at the start of recording. For example, the circuit 103
During the recording operation, at the end of the recording, or during the period from the recording to the start of the reproduction, the supplementary information is stored in the selected position in the table 108.

Here, the search information table 105, the position information table 106, the recordable position information table 107,
FIG. 2 shows the relationship between the
This will be described in more detail with reference to FIG. FIG. 2 shows the recording medium 10
1 shows the association of information stored in each table when several recordings are made. For example, the video data of the recording 1 is recorded at a position (A) on the recording medium 101. . Similarly, the position (B) on the recording medium 101
, The video data of recording 4 is recorded at the position (C) on the recording medium 101, and the video data of recording 3 is recorded at the position (E) on the recording medium 101. . Positions (D) and (F) on the recording medium 101 are both unused areas (free areas) in which video data has not yet been recorded.

On the other hand, on the search information table 105,
An information storage position on the position information table 106 in which recording position information for each recording (unit) is stored, and an additional information table 1 in which additional information for each recording (unit) is stored
08 is stored. For example, a recording medium 10 for video data in a recording unit of recording 1
The record position information on record 1 is stored in position (2) on position information table 106, and the supplementary information on record 1 is stored in position <3> in supplementary information table 108. Are recorded in the search information table 105. Therefore, when the video data is reproduced in the unit of recording 1, the instruction circuit 103 accesses and searches the table 105, and then the position information table 10
6 can be found to be accessed.

The recordable position information table 107 stores information on the position on the recording medium 101 that can be used at present. In the example shown in FIG. 2, the positions (D) and (F) on the recording medium 101 are stored. ) Are unused. Therefore, when recording video data in a certain recording unit, the instruction circuit 103 accesses the above-mentioned table 107 and searches for an unused area such as the position (D) or (F) on the recording medium this time. You can easily know that it can be used. For example, when the instruction circuit 103 selects a position (D) on the recording medium 101, the table 107
The above-mentioned recordable position information "(D) recordable" is deleted.

The instruction circuit 101 accesses the position information table 106 at the start of recording of video data in each recording unit and searches for an unused information storage position, thereby obtaining the current recording. The information storage position on the table 106 that can be used in the step (1) can be known, and it is selected. Further, the instruction circuit 103 performs the same processing on the incidental information table 108.

It should be noted here that the recording information storage circuit 104 storing the above-mentioned tables 105 to 108 is provided with the main function of the recording / reproducing apparatus after the operation such as recording and reproduction of video data is completed. The point is that even if the power supply (not shown) is cut off, the information stored in each of the tables 105 to 108 is maintained without being erased.

When the instruction circuit 103 receives a command from an operator via input means (not shown) to delete video data in a certain recording unit recorded in the recording medium 101, the same operation is performed. The circuit 103 deletes the video data, stores information that makes the position on the recording medium 101 where the deleted video data is recorded “recordable” in the recordable position information table 107, The information data in the table 107 is updated. Alternatively, the instruction circuit 103 may store the information in each table 10 relating to the recording unit.
5, 106, and 108, and adds information to the recordable position information table 107 to make the position on the recording medium 101 where the video data targeted for the delete instruction is recorded “recordable”. And the video data targeted for the deletion instruction may not be actually deleted. In this way, on the table, the video data of the recording unit may be apparently deleted.

[0035]

FIG. 3 is a block diagram showing a recording / reproducing apparatus which embodies the apparatus shown in FIG. 1 of the first embodiment. In FIG. 3, 111 is a hard disk device as a recording medium, 113 is a microcomputer as an instruction circuit, 112 is a hard disk control circuit as a data recording / reading circuit, and 124 is an electrically rewritable ROM as data position information holding means. And a non-volatile memory such as a flash memory. Then, the nonvolatile memory 12
4, a search information table 105, a position information table 106, a recordable position information table 107, and a supplementary information table 108 are provided.

Next, the recording operation of the video data will be described. First, at the start of recording of a certain recording unit, the microcomputer 113 stores the current recording in any location of the position information table 106 and the auxiliary information table 108 in the non-volatile memory 124 provided outside the hard disk 111. Whether to use the information to be used is selected, and the information is stored in the search information table 105 provided in the same nonvolatile memory 124. At the time of recording, the microcomputer 113 stores the recordable position information table 10 in the nonvolatile memory 124.
7, an available area on the hard disk 111 is selected as needed, and video data coming from the outside is recorded in the set location via the hard disk control circuit 112. At the same time, the microcomputer 113 additionally stores the data of the recording position information on the hard disk 111 on which the video data is recorded in the information storage position in the position information table 106 determined beforehand, and also stores the data in the recordable position information table 107. The data is updated to delete the data indicating the position used this time. Thereafter, the above operation is repeated for the video data that sequentially arrives, and the hard disk 1
The video data is recorded on the hard disk 111, and the recording position information indicating the location on the hard disk 111 used for recording is additionally updated in the position information table 106.

Next, the video data is transferred to the hard disk 111.
The operation in the case of reproducing from the. The microcomputer 113 acquires information stored in the search information table 105 in the non-volatile memory 124 provided outside the hard disk 111, and stores the recording position information of the video data to be reproduced in the position information table 106. Check where it is above. After the confirmation, the microcomputer 113 stores the information in the corresponding position on the position information table 106 in the nonvolatile memory 124.
The recording position information of the video data to be read out is taken out, and the hard disk control circuit 11
The video data is read from the corresponding location of the hard disk 111 via the external device 2, and the video data is output to the outside.

The information stored in the search information table 105, the position information table 106, the recordable position information table 107, and the supplementary information table 108, and their interrelationships are described in the first embodiment described with reference to FIG. This is the same as a modified example (1) or (2) of the first embodiment described later. Further, as described later as a modified example (3) of the first embodiment, the search information table 105 and the supplementary information table 108 may be combined by having a common index.

As described above, even if the operations such as recording or reproduction are completed and the main power is turned off, the video data on the hard disk 111 and the hard disk 1
The information stored in each of the tables 105 to 108 of the non-volatile memory 124 provided outside the device 11 is not deleted.

In this embodiment, the recording medium 10 shown in FIG.
As a specific example of the first embodiment, the hard disk 111 that performs magnetic recording and reproduction is used as a disk-type medium.

(Modification of First Embodiment) (1) FIG. 4 is a configuration example of the four tables 105 to 108 shown in FIG. 1 of the first embodiment (corresponding to a modification of FIG. 2).
And there is no difference from FIG. 1 in other points. FIG. 4 shows the association of information stored in each of the tables 105 to 108 when some recording is made in the recording medium 101 of FIG. The recording position is represented by a recording position address. For example, 0000 on the recording medium 101,
Video data of recording 1 (recording unit) is recorded at the position indicated by both addresses of 0001. Similarly, 00
At the addresses 02, 0003, 0004, 0007, 0008, the video data of record 2 is 0009, 0011,
At addresses 0012, 0014, and 0015, video data of record 3 is recorded. Also, 0005, 0006, 0010, 001 on the recording medium 101
Each position indicated by addresses 6, 0017, 0018, and 0019 is an unused area (free area) in which video data has not yet been recorded.

In response, the search information table 105
Above, an index (referred to as a recording index), which is an index value for each recording unit, and a position information table 106
(Reference value) and the entry (reference value) of the accompanying information table 108 are stored. For example, the first (head) recording start position of record 1 is stored in the location information table 106 where the entry value is 000, and the supplementary information of record 1 has the entry value 03 of the supplementary information table 108. The information that is stored in the place,
It is stored in the recording position indicated by the recording index 01 in the search information table 105.

Further, in the recordable position information table 107, a continuously usable unrecorded portion on the recording medium 101 which is currently usable is stored as an address value of a head position and an end value of the continuous portion. I have. In the example shown in FIG. 4, the recording position addresses are 0005 to 0006, 0010.
This table 107 stores that each part on the recording medium 101 indicated by (0010 to 0010) and 0016 to 0019 is unused.

On the other hand, the position information table 106 stores chain information of recording positions of video data for each recording unit on the recording medium 101. This point will be described with respect to the data of the recording position information in recording 3, for example. First, record 3
1 corresponds to the recording index value 03. Therefore, when the instruction circuit 103 in FIG. 1 accesses and searches the search information table 105 at a location where the recording index value is 03, the entry value to be referred to in the position information table 106 is 002. The circuit 103 can know that there is something. Next, the same circuit 103
Accesses the location where the entry value in the location information table 106 is 002, and, based on the information of the start position and the end position of that location, the position in the recording medium 101 where the first recording is made is indicated by the address of 0009. Can be detected. Further, the instruction circuit 103 can detect that the address indicating the recording position next to the recording position given by the address 0009 is stored in a place where the entry value indicated by the next entry is 004. Therefore, the instruction circuit 103
Is the location where the entry value 004 in the location information table 106 is accessed again to detect the content, and from the information stored at that location, the address of the location where the video data is recorded following the location of the 0009 address Is 0011-001
It is detected that the address of the recording position following the recording position given by the address 0012 in the area given by the address 2 may refer to the entry having the entry value 006. Therefore, the instruction circuit 103 accesses the location where the entry value in the position information table 106 is given by 006 again to detect the contents, and, based on the information at that position, gives the address of the next recording position with 0014 to 0015. To be detected. The instruction circuit 103 has a code (EOD: End of Data) indicating that the address of the end position in the current entry is the last recording position in the next entry in the recording position of the entry value 004. Thus, it is possible to know that the recording process of the video data in the recording medium 101 performed in the recording unit of recording 3 ends at the recording position indicated by the address 0015. In this way, the instruction circuit 103
Can know the addresses sequentially recorded in the record 3, generate those address information as the above-described first instruction signal, and then use the same as the first recording signal to read the signal.
Output to 1.

(2) FIG. 5 shows a modification (2) of the first embodiment. In relation to the modification (1) described above with reference to FIG. 4, the search information table 105 and the auxiliary information table 108 is different. As shown in FIG. 5, the search information table 105 in the present modification does not store an entry indicating the association between the recording index and the supplementary information table 108. Instead, the supplementary table information 108 contains , And K additional information for each recording unit indicated by each index value.

In this modification, since the search information table 105 and the supplementary information table 108 have a recording index as a common index, it is not necessary to provide an entry to the supplementary information table 108 in the search information table 105. The instruction circuit 103 can directly derive the supplementary information for each recording unit from the supplementary information table 108 based on the recording index.

According to the modification (2), the association between the additional information table and the search information table is fixed, so that access can be speeded up.

According to the modification (3), the table size can be reduced by integration.

(3) Further, as a modification of the modification (2),
The search information table 105 and the supplementary information table 108 may be combined as one table using a recording index under a common index. FIG. 6 shows such an example. As shown in FIG. 6, both tables 105 and 108
Are implemented in the circuit 104 as one table.
The other tables 106 and 107 are the same as those described in the modification (1) or (2) of the first embodiment.

(Embodiment 2) In the present embodiment, various tables 105-1 constituting the recording information holding means
08 and the recording means (video data recording unit) are both included in the recording medium. Therefore, the instruction means is provided with the above-mentioned table via the data recording control means / data read control means. Indirect transmission / reception with 105 to 108 is performed. Hereinafter, the present embodiment will be described with reference to the drawings.

FIG. 7 shows a recording / reproducing apparatus according to the present embodiment. Here, the recording medium 301 stores the search information table 105, the position information table 106, the recordable position information table 107, and the supplementary information table 108 at a predetermined location in the recording medium 301. Has a (video) data recording unit 101 as recording means for recording video data.
For this reason, the instruction circuit 103 controls the four tables 105 via the control of the data recording / reading circuit 102.
To 108, or record information in each of the tables 105 to 108.

Next, the recording operation of video data for each recording unit will be described. First, at the start of recording, the instruction circuit 103 accesses the position information table 106 and the auxiliary information table 108 on the recording medium 301 under the control of the circuit 102, and detects a free area in each of the tables 106, 108. By doing, each table 106, 10
8 where the information to be used for the current recording is to be stored. Through the operation of the circuit 102, the instruction circuit 103 stores the data at the selected information storage location in the search information table 10 provided on the recording medium 301.
Store it in 5. At the time of recording, first, the instruction circuit 1
Reference numeral 03 denotes a recordable position information table 107 provided on the recording medium 301 through the operation control of the circuit 102.
, An available area on the video data recording unit 101 is selected as needed, and the selected recording position information is instructed to the data recording / reading circuit 102 as a first instruction signal. Thereby, the data recording / reading circuit 102 that has received the instruction,
The video data arriving from the outside is recorded at a designated location on the data recording unit 101 designated by the first instruction signal. At the same time, the instruction circuit 103 additionally stores data (recording position information) relating to the position on the data recording unit 101 where the video data has been recorded, in the information storage position on the position information table 106 determined beforehand, and the recordable position. The data in the information table 107 is updated. Then, the above operation is repeated for sequentially arriving video data, and the video data is recorded on the data recording unit 101.
Recording position information indicating the place used for recording is additionally updated on the position information table 106.

Next, the operation for reproducing video data from the data recording unit 101 will be described. First, the instruction circuit 103 acquires the information stored in the search information table 105 on the recording medium 301 through the control of the data recording / reading circuit 102, and the recording position information on the video data to be reproduced is the position information. Check where it is on the table 106. After the confirmation, the instruction circuit 103 extracts the recording position information of the video data to be read stored at the corresponding position on the position information table 106 on the recording medium 301 via the circuit 102, and stores this information in the second The data recording / reading circuit 102 is instructed as an instruction signal. Accordingly, the data recording / reading circuit 102 that has received the instruction reads out the video data from the designated location on the data recording unit 101 and outputs the video data to the outside.

Here, the information stored in the search information table 105, the position information table 106, the recordable position information table 107, and the supplementary information table 108 in the present embodiment and the relationship between them are as described in the first embodiment.
Or, it is the same as the modified example (1) or (2). Also in the present embodiment, as described in the modified example (3) of the first embodiment, the search information table 105 and the incidental information table 108 can be combined by having a common index (index).

[0055]

FIG. 8 is a block diagram showing a specific example of a recording and reproducing apparatus according to the second embodiment. In the figure, reference numeral 311 denotes a hard disk device as a recording medium; 112, a hard disk control circuit having both data recording control means and data read control means; and 113, a microcomputer as instruction means. As described above, the search information table 105, the position information table 106, the recordable position information table 107, and the supplementary information table 108 are stored at predetermined locations in the hard disk 311. 101 is assigned.

Next, the recording operation of the video data in this embodiment will be described. At the start of recording, the microcomputer 113 controls the hard disk control circuit 11
2 to select the location of the position information table 106 and the auxiliary information table 108 on the hard disk 311 where the information to be used for the current recording is to be stored, and store it in the search information table 105 provided on the same hard disk 311 Remember. Next, at the time of recording, the microcomputer 113 selects an available area on the data recording unit 101 from the recordable position information table 107 provided on the hard disk 311 via the circuit 112 at any time, and the hard disk control circuit By controlling 112, video data arriving from the outside is recorded at the location. At the same time, the microcomputer 113 sends the position information table 106
In the information storage position, the position data on the data recording unit 101 that records the video data is additionally stored, and the data in the recordable position information table 107 is updated. Then, the above operation is repeated for the video data that sequentially arrives, the video data is recorded on the data recording unit 101 of the hard disk 311, and the recording position information indicating the place used for recording is added to the position information table 106. Will be updated.

Next, the video data is transferred to the hard disk 311.
The operation in the case of reproducing from the data recording unit 101 will be described. The microcomputer 113 acquires the information stored in the search information table 105 on the hard disk 311 via the hard disk control circuit 112, and where the recording position information on the video data to be reproduced is on the position information table 106. Confirm that. Then, the microcomputer 113 takes out the recording position information of the video data to be read, which is also stored in the corresponding position on the position information table 106 on the hard disk 311, and records the data in the hard disk 311 through the hard disk control circuit 112. Part 101
The video data is read from the corresponding location above, and the video data is output to the outside.

Also in this embodiment, the search information table 105,
Position information table 106, recordable position information table 1
07, the information to be stored in the supplementary information table 108 and the relationship between the information and the information are described in the first embodiment and its modification (1)
Or, it is the same as (2). Also in this embodiment, the search information table 105 and the supplementary information table 108 can be combined by having a common index.

Even in this embodiment, even if the above-described operations such as recording or reproduction are completed and the main power supply is cut off, various data on the hard disk 311, that is, video data and information stored in each table are not changed. Neither is erased.

In this embodiment, a hard disk by magnetic recording / reproducing is used as a recording medium. Alternatively, a disk device by optical recording / reproducing or magneto-optical recording / reproducing may be used.

According to the present embodiment, the microcomputer is used as the instruction means, and each table is provided on the disk type medium, so that the present apparatus can be realized at low cost.

(Embodiment 3) In the present embodiment, a part of the recording information holding means is provided in a predetermined portion of the recording medium,
The other part of the recording information holding means is provided in a storage circuit separately provided outside the recording medium, thereby realizing a two-part configuration of the recording information holding means. Hereinafter, the present embodiment will be described with reference to the drawings, focusing on this feature.

FIG. 9 is a block diagram showing a recording and reproducing apparatus according to the third embodiment. In the figure, reference numeral 321 denotes a position information table 106 and a recordable position information table 1 as a part of the record information holding means in a predetermined area inside thereof.
07 and a (video) data recording unit 101 in the other part. Reference numeral 134 denotes a recording information storage circuit provided outside the recording medium 321 as another part of the recording information holding unit. The recording information storage circuit 134 includes the search information table 105, the auxiliary information table 108, Is provided. Otherwise, the same reference numerals as those in FIG. 1 indicate the same components.

Next, the recording operation of the video data will be described. First, at the start of recording, the instruction circuit 103
By accessing the position information table 106 provided inside the recording medium 321 via the circuit 102,
In addition to detecting an empty area in the recording medium 321 and directly accessing the supplementary information table 108 in the recording information storage circuit 134 provided outside the recording medium 321,
08 is detected, and each of the tables 106 and 108 is detected.
Where is the information to be used for the current recording stored? Thereafter, the instruction circuit 103 directly accesses the search information table 105 provided in the recording information storage circuit 134, and stores the data of the selected information storage position in the table 105. During recording, the instruction circuit 103 controls the recordable position information table 1 provided inside the recording medium 321 under the control of the circuit 102.
07, an available area on the data recording unit 101 is selected at any time, and a first instruction signal for giving the selected recording position information is output and instructed to the circuit 102, so that data recording and
The read circuit 102 records video data coming from the outside at a selected location in the data recording unit 101. At the same time, the instruction circuit 103 sets the position information table 1
In the information storage location 06, the data of the recording location information on the data recording unit 101 in which the video data is recorded is stored in the circuit 10
The data is additionally stored through the operation 2 and the data in the recordable position information table 107 is updated (the data used this time is deleted). Then, the above operation is repeated for the video data that sequentially arrives, the video data is recorded on the data recording unit 101, and the recording position information indicating the place used for recording is additionally updated in the position information table 106. Go.

Next, the operation for reproducing video data from the data recording unit 101 will be described. Indication circuit 10
3 directly accesses the search information table 105 in the recording information storage circuit 134 to obtain the information stored in the table 105, and records the video data to be reproduced based on this information. It is confirmed where the position information is on the position information table 106. And
The instruction circuit 103 extracts the data of the recording position information of the video data to be read stored at the corresponding position on the position information table 106 via the circuit 102,
By outputting and instructing the circuit 102 a second instruction signal for giving this data, the data recording / reading circuit 102
To read the video data from the corresponding location in the data recording unit 101 and output the video data to the outside.

Also in this case, the search information table 105, the position information table 106, the recordable position information table 10
7. The information to be stored in the supplementary information table 108 and the relationship between them are the same as those in the above-described first embodiment, its modification (1) or (2). Also in the present embodiment, as described in the modified example (3) of the first embodiment, the search information table 105 and the supplementary information table 108 can be combined by having a common index.

It should be noted that even if the above-described operations such as recording or reproduction are completed and the main power supply is cut off, the video data on the recording medium 321 and the position information table 106 and the recordable position information table 107 are stored. Neither the information nor the information stored in the search information table 105 and the incidental information table 108 in the record information storage circuit 134 is deleted.

(Modification of Third Embodiment) (1) In the description of FIG. 9, the position information table 106 and the recordable position information table 107 are provided inside the recording medium 321 and are outside the recording medium 321. Although the record information storage circuit 134 is provided with the search information table 105 and the supplementary information table 108, the present invention is not limited to this combination. That is, four tables 1
05 to 108 may be provided in the recording medium 321 and the remaining two may be stored in the circuit 134.
Any combination at that time may be used.

(2) The number of tables to be distributed does not need to be every two tables.
Any one of the tables 5 to 108 is stored in the recording medium 321.
, And the remaining three tables may be provided in the recording information storage circuit 134, or vice versa.

[0070]

FIG. 10 is a block diagram showing a specific example of the third embodiment. Referring to FIG. 3, reference numeral 331 denotes a hard disk having a position information table 106 and a recordable position information table 107 as a part of recording information holding means in a part thereof. Reference numeral 144 denotes a non-volatile memory provided outside the hard disk 331 and serving as the other part of the recording information holding means. The non-volatile memory 144 includes a search information table 105 and an auxiliary information table 10.
8 are provided. Reference numeral 113 denotes a microcomputer as an instruction circuit, and reference numeral 112 denotes a hard disk control circuit as recording medium control means.

Next, the operation will be described. At the start of recording, the microcomputer 113 operates the position information table 106 provided inside the hard disk 331.
And a place in the auxiliary information table 108 in the nonvolatile memory 144 provided outside the hard disk 331 to store the information to be used for the current recording, and the selected information is provided in the nonvolatile memory 144. Stored in the search information table 105. At the time of recording, the microcomputer 113
An available area on the data recording unit 101 is selected as needed because it is provided inside the HDD 31, and the hard disk control circuit 112 records video data arriving from the outside at that location. At the same time, the microcomputer 113 additionally stores the position data on the data recording unit 101 on which the video data has been recorded in the information storage position of the position information table 106 determined previously, and also stores the recordable position information table 1
07 is updated. Then, the above operation is repeated for the video data sequentially arriving, and the data recording unit 10
1 and the recording position information indicating the place used for recording is additionally updated in the position information table 106.

Next, the operation for reproducing video data from the data recording unit 101 will be described. The microcomputer 113 stores the search information table 1 in the nonvolatile memory 144 provided outside the hard disk 331.
05, and the recording position information on the video data to be reproduced is stored in the position information table 106.
Check where it is on. Then, the microcomputer 113 takes out the recording position information of the video data to be read stored at the corresponding position on the position information table 106, and reads the video data from the corresponding position in the data recording unit 101 by the hard disk control circuit 112. And video data to the outside.

Also in this case, the search information table 105, the position information table 106, the recordable position information table 10
7. The information stored in the supplementary information table 108 and the relationship between the information and the information are described in the first embodiment, its modification (1),
Same as (2). Also in the present embodiment, the search information table 105 and the supplementary information table 108 can be combined by having a common index.

In addition, even if the above-described operations such as recording or reproduction are completed and the main power supply is shut off thereafter, the video data and the position information table 1
06 and the recordable position information table 107, and the information stored in the search information table 105 and the supplementary information table 108 in the non-volatile memory 144 provided outside the hard disk 331 are all deleted. It will not be done.

Although a hard disk is used as a recording medium in this embodiment, a disk device using optical recording / reproducing or magneto-optical recording / reproducing may be used instead.

According to the present embodiment, the microcomputer 113 is used as the instruction means, and each table is distributed and held in the disk type medium 331 and the non-volatile memory 144. Useful and
This device can be realized at low cost.

(Embodiment 4) In this embodiment, the recording information holding means is the first recording information holding means (table 1).
05-108) and the second recording in which each information stored in the first recording information holding means is copied before recording of the video data, that is, after the main power of the recording / reproducing apparatus is turned on. And information holding means.

Hereinafter, an example in which the concept of the present embodiment is applied to the first embodiment (FIG. 1) will be described with reference to the drawings.

FIG. 11 is a block diagram showing a recording / reproducing apparatus according to the present embodiment. In FIG. 1, reference numerals 201 and 202 denote a first storage circuit and a second storage circuit, respectively, as first and second recording information holding units. Of these, the first storage circuit 201 includes a search information table (first search information storage unit) 105, a position information table (first recording position information storage unit) 106, and a recordable position information table (first recordable A position information storage unit) 107 and an additional information table (first additional information storage unit) 108 are provided. On the other hand, in the second storage circuit 202, the duplicate search information table (second search information storage unit) 405 and the duplicate position information table (second Recording position information storage unit) 406, a copy recordable position information table (second
A recordable position information storage unit) 407 and a duplicate additional information table (second additional information storage unit) 408 are provided.
Before the main power of the apparatus is turned on, no data is stored in these replication tables 405 to 408.

The operation of the present embodiment having the above configuration will be described. As shown in FIG. 13, when the main power of the apparatus is turned on, the instruction circuit 103 extracts information stored in each of the tables 105 to 108 from the first storage circuit 201, and stores the information data in the second storage circuit 201. The data is stored in the storage circuit 202. As a result, duplicate tables corresponding to the respective tables 105 to 108 are stored in the second storage circuit 202.
That is, a copy search information table 405, a copy position information table 406, a copy recordable position information table 407, and a copy supplementary information table 408 are generated.

The operation of recording video data for each recording unit will be described below. First, at the start of recording, the instruction circuit 103 directly accesses the copy position information table 406 and the copy supplementary information table 408 in the second storage circuit 202 to extract the free space in each of the copy tables 406 and 408. This allows each replication table 40
6,408 is selected to store the information used for the current recording. Then, the instruction circuit 103 stores the data of the selection information in the duplicate search information table 405 in the same second storage circuit 202. Next, at the time of recording, the instruction circuit 103 stores the second storage circuit 20
2, a usable area on the recording medium 101 constituting a recording unit or a data recording unit is selected at any time from the duplicate recordable position information table 407, and the data recording / reading circuit 102 is drive-controlled to thereby control the recording medium 101. The video data arriving from the outside is recorded at the selected place in the inside. At the same time, the instruction circuit 103 additionally stores data indicating the recording position information on the recording medium 101 on which the video data has been recorded, in the information storage position of the previously determined copy position information table 406, and records the copy recordable position information. Data update is performed to delete the recordable position information used this time in the table 407. Then, the above operation is repeated for the video data that sequentially arrives, the video data is recorded on the recording medium 101, and the recording position information indicating the place used for recording is additionally updated in the copy position information table 406. Go.

Next, the operation for reproducing video data from the recording medium 101 will be described. First, the instruction circuit 10
3 directly accesses the duplication search information table 405 in the second storage circuit 202 to obtain information stored in the duplication table 405, and records the recording position information on the video data to be reproduced in the duplication position information table 406. Check where it is on. Then, the instruction circuit 103
Based on the information data obtained by the confirmation, the second storage circuit 2
02, the data of the recording position information of the video data to be read, which is stored at the corresponding position on the duplication position information table 406, is output. By doing so, the video data is read from the corresponding location on the recording medium 101 and the video data is output to the outside.

The instruction circuit 103 extracts the contents stored in each of the replication tables 405 to 408 from the second storage circuit 202 at a predetermined timing described later, and stores the extracted information data in the first storage circuit 202. The information is stored in the corresponding tables 105 to 108 in the storage circuit 201. Thereby, each of the tables 105 to 108 in the first storage circuit 201 is
Is updated with the information stored in each of the tables 405 to 408 in the second storage circuit 202,
The contents of the tables 105 to 108 in the first storage circuit 201 and the corresponding tables 405 in the second storage circuit 202
408 can be matched.

The above-mentioned predetermined timing, that is, the timing at which the contents of each table stored in the first storage circuit 201 are updated with the contents of each table stored in the second storage circuit 202, is determined according to the recording of video data. If it does not interfere with the operation or reproduction operation, for example, it may be a timing when recording or reproduction is not executed, or
This may be the timing at the end of the recording operation, or the timing before the main power is turned off.

Here, the search information table 105, the position information table 106, the recordable position information table 10
7. The information to be stored in the supplementary information table 108 and the relationship between them are the same as those in the above-described first embodiment, its modification (1) or (2). Accordingly, the copy search information table 405, the copy position information table 406, the copy recordable position information table 407, and the copy supplementary information table 40
It goes without saying that the information to be stored in the storage unit 8 and the relationship between them are also the same as those of the first embodiment, its modification (1) or (2).

Also, the fact that the search information table 105 and the supplementary information table 108 can be combined by having a common index, and that the copy search information table 405 and the copy supplementary information table 408 can be similarly combined, according to the first embodiment. This is as described in the modification (3).

In this embodiment, the data of all tables stored in the first storage circuit 201 is temporarily copied and used in the second storage circuit 202.
Instead, each piece of information data stored in only some of the tables (k tables: 1 ≦ k ≦ 3) in the first storage circuit 201 is copied into k copies in the second storage circuit 202. It is also possible to duplicate and use the corresponding table. In that case, the table in which the information is not duplicated in the second storage circuit 202 is stored in the instruction circuit 103.
Can use the corresponding (4-k) tables in the first storage circuit 201.

Also in this embodiment, even if the above-described operations such as recording or reproduction are completed and the main power supply is cut off, the video data on the recording medium 101 and the first storage circuit 20
1, the information stored in each of the tables 105 to 108 is not deleted at all.

[0089]

FIG. 12 is a block diagram showing an embodiment of the present embodiment, and shows a concrete configuration of the present embodiment. In the figure, reference numeral 211 denotes a first storage circuit,
It is a non-volatile memory such as an electrically rewritable ROM or a flash memory. Reference numeral 212 denotes a volatile memory, such as a DRAM or an SRAM, serving as a second storage circuit, which can operate at a higher speed than the nonvolatile memory 211.

When the power is turned on, the microcomputer 11
3 extracts information in each table stored from the non-volatile memory 211, stores the information in the volatile memory 212, and stores the duplicate search information table 405, the duplicate position information table 406, and the duplicate in the volatile memory 212. Recordable position information table 407 and copy supplementary information table 40
8 are generated.

Next, the operation will be described. At the start of recording, the microcomputer 113 selects which of the copy position information table 406 and the copy supplementary information table 408 in the volatile memory 212 stores the information used for the current recording, and Is stored in the volatile memory 212.
05 is stored. At the time of recording, the microcomputer 113 reads the copy recordable position information table 407 in the volatile memory 212 from the hard disk 111.
The upper usable area is selected at any time, and the hard disk control circuit 112 is driven and controlled at that location to record video data coming from the outside. At the same time, the microcomputer 113 sets the copy position information table 4
In the information storage position 06, the position data on the hard disk 111 on which the video data is recorded is additionally stored,
The data of the replication table 407 is updated. And
The above operation is repeated for the video data that sequentially arrives, the video data is recorded on the hard disk 111, and the recording position information indicating the place used for recording is additionally updated in the copy position information table 406.

Next, the video data is transferred to the hard disk 111
The operation in the case of reproducing from the. The microcomputer 113 acquires the information stored in the copy search information table 405 in the volatile memory 212,
It is confirmed where the recording position information on the video data to be reproduced is on the duplication position information table 406. Then, the microcomputer 113 reads the volatile memory 2
By extracting the data of the recording position information of the video data to be read stored at the corresponding position on the duplication position information table 406 in 12, and controlling the drive of the hard disk control circuit 112 based on this information data,
The video data is read from the corresponding location on the hard disk 111 and the video data is output to the outside.

The microcomputer 113 extracts the contents of the tables 405 to 408 stored from the volatile memory 212 at the above-mentioned predetermined timing, and extracts them from the corresponding tables 105 to 405 of the nonvolatile memory 211. 108. Accordingly, each of the tables 105 to 10 stored in the nonvolatile memory 211 is
8 is updated with the information of each of the tables 405 to 408 stored in the volatile memory 212,
11 and the contents of the tables 405 to 408 of the volatile memory 212 are matched.

In this embodiment, the search information table 10
5. The information stored in the position information table 106, the recordable position information table 107, and the supplementary information table 108 and their relationships are the same as those in the first embodiment, its modification (1) or (2). Therefore, the replication search information table 4
05, the information to be stored in the copy position information table 406, the copy recordable position information table 407, and the copy supplementary information table 408, and their relationships are also the same as those in the first embodiment, its modification (1) or (2). . Also, by having a common index, the search information table 105 and the supplementary information table 108 can be combined, and similarly, the duplicate search information table 405 and the duplicate supplementary information table 40
8 can also be combined.

In the above embodiment, the contents of all the tables 105 to 108 stored in the nonvolatile memory 211 are temporarily stored in the corresponding copy table 405 of the volatile memory 212.
Although it is configured to copy and use 408, only some of the tables may be copied and used. In this case, the table in the non-volatile memory 211 can be used for the table that has not been copied.

Also in this embodiment, even if the above-described operations such as recording or reproduction are completed and the main power supply is cut off, the video data on the hard disk 111 and the nonvolatile memory 2
The information stored in each of the tables 105 to 108 in No. 11 is not deleted at all.

In this embodiment, too, the hard disk 11
Instead of 1, a disk device using optical recording / reproducing or magneto-optical recording / reproducing can be used.

(Modification of Fourth Embodiment) (1) This modification corresponds to an example in which the concept of the present embodiment described with reference to FIG. 11 is applied to the second embodiment described above. Hereinafter, this modified example will be described with reference to the drawings.

FIG. 13 is a block diagram showing a recording / reproducing apparatus according to this modification. In FIG.
Reference numerals 5 to 108 constitute a part (first recording information holding means) of the recording information holding means, and reference numeral 202 denotes a second part which constitutes another part of the recording information holding means (second recording information holding means). 2
The storage circuit can perform a faster response operation than the recording medium 301. In FIG. 13, the same reference numerals as those in FIG. 7 of the second embodiment denote the same components.

Next, the recording operation of the video data will be described. As shown in FIG. 13, when the main power supply is turned on, the instruction circuit 103 controls the recording medium 3 via the drive control of the circuit 102.
01, information stored in each of the tables 105 to 108 is extracted, and the information is stored in the second storage circuit 202. As a result, duplicate tables corresponding to the respective tables 105 to 108 are stored in the second storage circuit 202, that is, the duplicate search information table 405, the duplicate position information table 406, and the duplicate recordable position information table 40
7, and each table of the duplicate incidental information table 408 are generated.

At the start of recording, the instruction circuit 103
Directly accesses both tables 406 and 408,
Duplication position information table 406 and duplication supplementary information table 4
08 is selected to store the information used for the current recording. And the same circuit 103
Stores the data of the information storage locations in the duplicate search information table 405 provided in the same second storage circuit 202. At the time of subsequent recording, the instruction circuit 103
Selects an available area on the data recording unit 101 from the duplicate recordable position information table 407 in the second storage circuit 202 as needed, and controls the driving of the data recording / reading circuit 102 at that location. Record video data coming from outside. At the same time, the instruction circuit 103 additionally stores the information data of the recording position on the data recording unit 101 where the video data is recorded in the information storage position of the duplication position information table 406 previously determined, and also records the duplication recordable position information table 407. Update the contents of And
The above operation is repeated for sequentially arriving video data, video data is recorded on the data recording unit 101, and recording position information indicating a place used for recording is additionally updated in the duplication position information table 406. .

Next, the operation for reproducing video data from the data recording unit 101 will be described. First, the instruction circuit 103 obtains information stored in the copy search information table 405 in the second storage circuit 202, and where on the copy position information table 406 is the recording position information on the video data to be reproduced. Confirm that. And
The circuit 103 extracts the data of the recording position information of the video data to be read, which is stored at the corresponding position on the duplication position information table 406 in the second storage circuit 202, and based on this data, the data recording / reading circuit 10
By controlling the driving of the video data unit 2, the video data is read from the corresponding location on the data recording unit 101, and the video data is output to the outside.

The instruction circuit 103 operates the second storage circuit 2 at the predetermined timing described in the fourth embodiment.
02, the contents stored in the tables 405 to 408 are extracted, and the extracted contents are stored in the tables 105 to 108 in the recording medium 301 via the circuit 102. Thereby, each of the tables 105 to 10 in the recording medium 301 is
8 is updated with the information stored in each of the tables 405 to 408 in the second storage circuit 202, and the contents of each of the tables 105 to 108 in the recording medium 301 and the information in the second storage circuit 202 are updated. The contents of the tables 405 to 408 can be matched.

Also in this modification, the search information table 105,
Position information table 106, recordable position information table 1
07, the information to be stored in the supplementary information table 108 and the relationship between the information and the information are described in the first embodiment and its modification (1)
Or (2), the copy search information table 40
5. The information stored in the copy position information table 406, the copy recordable position information table 407, and the copy supplementary information table 408, and their relationships, are also the same as those described in the first embodiment.
This is the same as the modified example (1) or (2). Further, a modification of the first embodiment (the modification of the first embodiment) is that the search information table 105 and the supplementary information table 108 can be combined by having a common index, and the duplicate search information table 405 and the duplicate supplementary information table 408 can be similarly combined. As described in 3).

Also in the present modification, it is a matter of course that only the contents of a part of the table in the recording medium 301 can be duplicated and used in the second storage circuit 202 side. In this case, the contents of the corresponding table in the recording medium 301 will be used for the table that has not been copied.

Also in this modification, even if the above-described operations such as recording or reproduction are completed and the main power is turned off, the video data on the recording medium 301 and the tables 105 to
8 is not erased.

In this modification (1), various types of recording information independent of the file system of the operating system of the computer are stored in the recording medium 301 in the four tables 105 to 108 and are stored outside the recording medium 301. 2 storage circuit 202 is provided, and the recording position information of the duplicated data on the second storage circuit 202 is extracted from the recording medium 301 during recording and reproduction.
It is difficult to obtain the original video data even if 01 is connected to a personal computer or the like, which helps to prevent unauthorized copying. Also, high-speed recording and reproduction of video data can be performed.

[0108]

FIG. 14 is a block diagram showing a configuration embodying a modified example (1) of the fourth embodiment. In the figure,
Reference numeral 311 denotes a hard disk as a recording medium, and 222 denotes a memory as a second storage circuit.
Operation faster than 11 is possible. Therefore, memory 2
22 may be non-volatile or volatile.

Next, the operation will be described. As shown in the figure, when the main power is turned on, the microcomputer 11
3 extracts information stored in each of the tables 105 to 108 from the hard disk 311 via the hard disk control circuit 112 and stores the information in the memory 22.
Store it in 2. As a result, the copy search information table 405 and the copy position information table 40 are stored in the memory 222.
6, a copy recordable position information table 407 and a copy supplementary information table 408 are generated.

At the start of recording, the microcomputer 113 operates the copy position information table 4 stored in the memory 222.
06 and the location of the copy incidental information table 408 where the information to be used for the current recording is to be stored, and the selected information is stored in the copy search information table 40 provided in the memory 222.
5 is stored. At the time of recording, the microcomputer 113 selects an available area on the data recording unit 101 from the duplicate recordable position information table 407 in the memory 222 as needed, and controls the hard disk control circuit 112 to perform the selection. The video data arriving from the outside is recorded in the set place. At the same time, the microcomputer 113 operates the copy position information table 40 defined above.
In the information storage position of No. 6, the data of the information of the recording position on the data recording unit 101 where the video data is recorded is additionally stored, and the information in the copy table 407 is updated.
Then, the above operation is repeated for the video data that sequentially arrives, the video data is recorded on the data recording unit 101, and the recording position information indicating the location used for recording is additionally updated in the duplication position information table 406. To go.

Next, the operation when the video data is reproduced from the data recording unit 101 will be described. The microcomputer 113 acquires the information stored in the copy search information table 405 in the memory 222, and checks where the recording position information on the video data to be reproduced is on the copy position information table 406. Then, the computer 113 takes out the position information of the video data to be read stored at the corresponding position on the copy position information table 406 in the memory 222, and controls the hard disk control circuit 112 based on this information, The video data is read from a corresponding location on the data recording unit 101, and the video data is output to the outside.

The microcomputer 113 extracts the contents stored in each of the tables 405 to 408 from the memory 222 at the predetermined timing described above, and stores them in the hard disk 311. This allows
The information stored in each table 105 to 108 in the hard disk 311 is stored in each table 4 in the memory 222.
The contents of the tables 105 to 108 of the hard disk 311 and the contents of the tables 405 to 408 of the memory 222 can be updated by updating the information with the information stored in the tables 05 to 408.

Also in this embodiment, the search information table 105,
Position information table 106, recordable position information table 1
07, the information to be stored in the supplementary information table 108 and the relationship between them are the same as those in the first embodiment, its modification (1) or (2), and the copy search information table 405, the copy position information table 406, The information to be stored in the possible position information table 407 and the duplicate accompanying information table 408 and the relationship between them are also the same as those in the first embodiment, the modification (1) or (2). Also, by having a common index, the search information table 105 and the supplementary information table 108 can be combined, and similarly, the duplicate search information table 405 and the duplicate supplementary information table 408 can be combined.

In this embodiment, too, the hard disk 31
Only the contents of some of the tables on the storage device 1 may be copied to the memory 222 and used. In this case, the corresponding table on the hard disk 311 can be used for the table that has not been copied. is there.

Also in this embodiment, even if the above-described operations such as recording or reproduction are completed and the main power supply is cut off, the video data on the hard disk 311 and the respective tables 105
The information stored in .about.108 is not deleted at all.

In this embodiment, too, the hard disk 31
Instead of 1, a disk device using optical recording / reproducing or magneto-optical recording / reproducing can be used.

Further, according to the present embodiment, the microcomputer 113 is used as the instruction means, the memory 222 is used as the second data position information holding means, and the data on the memory 222 copied from the disk type medium 311 is recorded and reproduced at the time of recording and reproduction. Since the recording position information is extracted, the first storage circuit becomes unnecessary, and high-speed recording and reproduction of video data can be realized at lower cost.

(2) In this modification, the concept of the fourth embodiment is applied to the third embodiment (FIG. 9).

FIG. 15 is a block diagram showing a modification (2) of the fourth embodiment. In the figure, reference numeral 321 denotes a recording medium having therein a position information table 106 and a recordable position information table 107 in addition to the data recording unit 101.
A storage circuit and a second storage circuit. The first storage circuit 201 is provided with the search information table 105 and the supplementary information table 108, and the second storage circuit 202
Can perform a faster response operation than either the recording medium 321 or the first storage circuit 201. As described above, in the present modification, a part of the recording medium 321 (tables 106 and 107)
The first storage circuit 201 and the first storage circuit 201 constitute a first recording information holding unit, and the second storage circuit 202 (tables 405 to 408) constitutes a second recording information holding unit.

Next, the operation will be described. When the main power is turned on, the instruction circuit 103 extracts each piece of information stored in each of the tables 106 and 107 from the recording medium 321 via the circuit 102, and stores the information in the second storage circuit 202. At the same time, the information stored in each of the tables 105 and 108 is extracted from the first storage circuit 201, and the data of the information is stored in the second storage circuit 202. As a result, the copy search information table 405 and the copy position information table 40 are stored in the second storage circuit 202.
6, a copy recordable position information table 407 and a copy supplementary information table 408 are generated.

At the start of recording, the instruction circuit 103
Duplication position information table 406 in second storage circuit 202
Where the information to be used for the current recording is to be stored, and
The data of the selected information storage location is stored in the duplicate search information table 405 provided in the second storage circuit 202. In recording, the instruction circuit 103 stores the copy recordable position information table 40 in the second storage circuit 202.
7, an available area on the data recording unit 101 is selected at any time, and the data recording / reading circuit 102 is controlled based on the data of the selected recording position information, thereby recording video data arriving from the outside at that location. . At the same time, the instruction circuit 103 operates the copy position information table 40 determined in advance.
In the information storage position of No. 6, the position data on the data recording unit 101 where the video data is recorded is additionally stored, and the content of the copy table 407 is updated. The above operation is repeated for the video data that sequentially arrives, and the video data is recorded on the data recording unit 101, and the recording position information indicating the location used for recording is updated in the copy position information table 406. Will be done.

Next, the operation for reproducing video data from the data recording unit 101 will be described. Indication circuit 10
3 obtains information stored in the copy search information table 405 in the second storage circuit 202 and checks where the recording position information on the video data to be reproduced is on the copy position information table 406. . Then, the same circuit 103 extracts the data of the recording position information of the video data to be read stored at the corresponding position on the duplication position information table 406 in the second storage circuit 202, and performs data recording / reading based on the data. By controlling the read circuit 102, the video data is read from the corresponding location of the data recording unit 101, and the video data is output to the outside.

The instruction circuit 103 stores the table 4 from the second storage circuit 202 at the predetermined timing described above.
The contents stored in the storage medium 321 and the first storage circuit 201 are extracted by extracting the contents stored in the storage mediums 05 to 408 and storing them in the storage medium 321 and the first storage circuit 201. Is updated with the information stored in the corresponding tables 405 to 408 in the second storage circuit 202, and the contents of the tables 105 to 108 in the recording medium 321 and the first storage circuit 201 and each of the tables in the second storage circuit 202 are updated. The contents of the tables 405 to 408 are matched. In the example shown in the figure, the position information table 106 and the recordable position information table 107 on the recording medium 321 are determined by the contents of the copy position information table 406 and the copy recordable position information table 407 of the second storage circuit 202. Are updated, and the contents of the search information table 105 and the supplementary information table 108 on the first storage circuit 201 are updated with the contents of the copy search information table 405 and the copy supplementary information table 408 of the second storage circuit 202. Update each.

Also in this case, the search information table 105, the position information table 106, the recordable position information table 10
7. The information stored in the supplementary information table 108 and the relationship between the information and the information are described in the first embodiment, its modification (1) or (2).
Is the same as Therefore, the copy search information table 405,
The information to be stored in the copy position information table 406, the copy recordable position information table 407, and the copy supplementary information table 408 and their relationships are also the same as those in the first embodiment, the modification (1) or (2). Further, by having a common index, the search information table 105 and the supplementary information table 108 can be combined, and the duplicate search information table 405 and the duplicate supplementary information table 408 can be similarly combined.

Here, even if the above-described operations such as recording or reproduction are completed and the main power supply is cut off, the recording medium 32
1, the information stored in the position information table 106 and the recordable position information table 107, and the search information table 105 and the supplementary information table 108 in the first storage circuit 201 provided outside the recording medium 321.
None of the information stored in is stored.

In the above description, the recording medium 32
1, the position information table 106 and the recordable position information table 107 are provided, and the search information table 105 and the supplementary information table 108 are provided in the first storage circuit 201 outside the recording medium 321. As described in the third embodiment, the storage location of the table is not limited, and may be any combination. Furthermore, the number of tables to be dispersed need not be every two tables,
One table may be provided inside the recording medium 321 and three tables may be provided in the first storage circuit 201, or vice versa.

Also in this modification, of course, only a part of the table in the recording medium 321 and the table in the first storage circuit 201 may be duplicated and used. In that case, for the table that has not been copied, the corresponding table in the recording medium 321 or the first storage circuit 201 can be used.

In the modification (2), each table is distributed and stored on the recording medium 321 and the first storage circuit 201 provided outside the recording medium 321, and is stored outside the recording medium 321. Since the second storage circuit 202 is provided and the recording position information of the data on the duplicated second storage circuit 202 is extracted from the recording medium 321 and the first storage circuit 201 at the time of recording and reproduction, the recording medium 321 can be used as a personal computer or the like. , It is difficult to obtain the original video data, which helps prevent unauthorized copying. Also, high-speed recording and reproduction of video data can be performed.

[0129]

FIG. 16 is a block diagram showing a configuration embodying a modification (2) of the fourth embodiment. In the figure,
Reference numeral 331 denotes a hard disk as a recording medium, which has a position information table 106 and a recordable position information table 107 therein. Numerals 211 and 212 denote a non-volatile memory and a non-volatile memory as first and second storage circuits, respectively. Volatile memory. Then, the nonvolatile memory 211
Contains the search information table 105 and the supplementary information table 1
08, and the volatile memory 212 can perform a faster response operation than either the hard disk 331 or the nonvolatile memory 211.

Next, the operation will be described. When the main power is turned on, the microcomputer 113
31, information stored in each of the tables 106 and 107 is extracted, and the extracted information is stored in the volatile memory 212.
The information stored in 5, 108 is extracted and stored in the volatile memory 212. Accordingly, in the volatile memory 212, each table of the copy search information table 405, the copy position information table 406, the copy recordable position information table 407, and the copy supplementary information table 408 is generated.

At the start of recording, the microcomputer 113 selects which of the copy position information table 406 and the copy supplementary information table 408 in the volatile memory 212 to store information used for the current recording. Are stored in the duplicate search information table 405 provided in the volatile memory 212. At the time of recording, the microcomputer 113 stores in the volatile memory 2
12, an available area on the data recording unit 101 is selected from the duplicate recordable position information table 407 at any time, and video data coming from the outside is recorded at that location. At the same time, the microcomputer 113 additionally stores the position data of the data recording unit 101 that has recorded the video data in the information storage position of the previously determined copy position information table 406, and changes the contents of the copy recordable position information table 407. Yes (deletion process). Then, the above operation is repeated for the video data sequentially arriving, and the data recording unit 10
1, the recording position information indicating the place used for recording is recorded in the copy position information table 406.
Will be added and updated.

Next, the operation for reproducing video data from the data recording unit 101 will be described. The microcomputer 113 acquires the information stored in the copy search information table 405 in the volatile memory 212, and checks where the recording position information on the video data to be reproduced is on the copy position information table 406. . Then, the computer 113 extracts the data of the recording position information of the video data to be read, which is stored at the corresponding position on the duplication position information table 406 in the volatile memory 212, and outputs the data to the hard disk control circuit 112. The image data is read out from the corresponding location on the data recording unit 101 of the data storage unit 331 and is output to the outside.

The microcomputer 113 extracts the contents stored in each of the tables 405 to 408 from the volatile memory 212 at the predetermined timing described above, and stores them in the hard disk 331 and the nonvolatile memory 211. As a result, the hard disk 331
And each table 10 of the nonvolatile memory 211
The information stored in 5-108 is stored in volatile memory 212.
Of the hard disk 331 and the non-volatile memory 211.
Of each table 105 to 108 and the volatile memory 21
2 are matched with the contents of the tables 405 to 408.
In the example shown in the figure, the copy position information table 406 and the copy recordable position information table 4 in the volatile memory 212
07 and the position information table 1 on the hard disk 331
06 and the recordable position information table 107 are updated, and the copy search information table 4 in the volatile memory 212 is updated.
The search information table 105 and the additional information table 108 on the non-volatile memory 211 are updated with the information 05 and the duplicate additional information table 408.

Here, the search information table 105, the position information table 106, the recordable position information table 10
7. The information stored in the supplementary information table 108 and the relationship between the information and the information are described in the first embodiment, its modification (1),
Same as (2). Therefore, the replication search information table 4
05, the information stored in the copy position information table 406, the copy recordable position information table 407, and the copy supplementary information table 408, and the relationship between them, are also the same as those in the first embodiment and its modified examples (1) and (2). is there. Further, by having a common index, the search information table 105 and the supplementary information table 108 can be combined, and similarly, the duplicate search information table 405 and the duplicate supplementary information table 408 can be combined.

[0135] Even if the main power supply is cut off after the above operations such as recording or reproduction are completed, the hard disk
The information stored in the video data, the position information table 106, the recordable position information table 107, and the search information table 105 and the auxiliary information table 108 in the non-volatile memory 211 provided outside the hard disk 331 are as follows: It is not erased at all.

In the present embodiment as well, there is no limitation on the storage location of the tables, any combination may be used, and the number of tables to be distributed need not be every two tables. One table is stored in the hard disk 331.
The three tables may be provided in the non-volatile memory 211, or vice versa.

In the above embodiment, the hard disk 3
Although all the tables stored in the nonvolatile memory 211 and the nonvolatile memory 211 are temporarily copied and used in the volatile memory 212, only some of the tables may be copied and used. In that case, for the table that has not been duplicated, the corresponding table in the hard disk 331 or the nonvolatile memory 211 can be used.

Also in this embodiment, a disk device using optical recording / reproducing or magneto-optical recording / reproducing may be used instead of the hard disk 331.

Further, according to the present embodiment, the microcomputer 113 is used as the instruction means, and the respective tables are distributed and held in the disk-type medium 331 and the nonvolatile memory 211. Volatile memory 2 copied from non-volatile memory 211
Since the recording position information of the data on the data 12 is extracted, it is possible to prevent illegal copying and to realize high-speed recording and reproduction of video data at a lower cost.

(3) Each of the tables 105 to 10 in FIG.
8 is provided separately, and the instruction circuit 103 sets the respective replication tables 405 to 4 in the second storage circuit 202 at the predetermined timing described above.
Instead of storing (updating) the information on 08 in the corresponding tables 105 to 108 in the first storage circuit 201, the information may be stored in the corresponding tables in the third storage circuit. At this time, when the main power is turned on and the next data is recorded and reproduced, the third storage circuit has the same function and role as the first storage circuit 201 in FIG. Such a modification is, of course, applicable to the modification (1) or (2) of the fourth embodiment.

(Embodiment 5) FIG. 19 shows Embodiment 5 of the present invention.
1 is a block diagram showing a configuration of a digital broadcast receiver according to the first embodiment. Referring to FIG. 5, reference numeral 501 denotes a digital broadcast receiving tuner as broadcast receiving means for receiving digital broadcasts; 502, a recording / reproducing apparatus corresponding to any of the first to fourth embodiments (including modified examples); Is a selection circuit for selecting any one of the received video data output by the digital broadcast tuner 501 and the reproduced video data output by the recording / reproducing device 502, and 504 decodes the video data selected by the selection circuit 503. A decoding processing circuit 505 serving as a decoding means for performing output is output from a remote control receiving circuit, a switch circuit, or the like (not shown).
An operation control circuit as an instruction receiving unit that receives a signal corresponding to an instruction from a user and controls the operation (recording, reproducing, erasing, etc. of data) of the recording / reproducing device 502.

The operation of the digital broadcast receiver according to the present embodiment will be described. The digital broadcast tuner 501 demodulates the digital video data in synchronization with the set broadcast wave and outputs it as received video data. The received video data is input to the recording / reproducing device 502 and the selection circuit 503. The recording / reproducing device 502 is the same as that of the first embodiment.
As shown in (4) to (4) and the modifications, it is possible to record the input received video data on a recording medium and to reproduce already recorded video data. Then, the reproduced video data, which is the reproduction output of the recording / reproducing device 502, is input to the selection circuit 503, and the output of the selection circuit 503 is decoded by the decode processing circuit 504 into a video signal. The operation control circuit 505 controls the operation of the recording / reproducing device 502 according to the user's operation intention based on a control switch operated by the user or an instruction signal issued from a remote controller or the like. Here, the operation of the recording / reproducing device 502 when the user's operation intention is recording or reproduction is as follows.
As described in the first to fourth embodiments (including each of the modifications).

If the data to be input to the tuner 501 is an MPEG stream, the tuner 501 outputs the received MPEG stream, and the recording / reproducing device 502
Outputs a reproduced MPEG stream, and the circuit 504 outputs M
The PEG stream signal will be output.

[0144]

According to the first aspect of the present invention, in recording data on the data recording unit and reproducing data, various recording information necessary for recording and reproduction is independent of the file system of the operating system of the computer. Is stored in at least three information storage units in the recorded information storage means, so that even if the data recording unit is connected to a personal computer or the like, it is difficult to obtain the original recorded data, thus preventing illegal copying. There is an effect that can be useful.

According to the second aspect of the present invention, since the recording information holding means is provided outside the recording medium, even if the data in the recording medium is duplicated, the original recorded data cannot be obtained. It has the effect of helping prevention.

According to the third aspect of the present invention, the recording / reproducing apparatus can be realized at low cost.

According to the fourth aspect of the present invention, even if the data in the data recording section is duplicated, the original recorded data cannot be obtained, which is useful for preventing unauthorized copying and also for high-speed input data. This has the effect that recording and reproduction can be performed by instructing information on the recording and reproduction position without delay.

According to the fifth aspect of the present invention, there is an effect that it is possible to prevent illegal copying and to realize high-speed recording and reproduction of input data at low cost.

According to the sixth aspect of the present invention, since the information storage section is held on the recording medium, there is an effect that it is not necessary to provide a special circuit for storing each information storage section.

According to the seventh aspect of the present invention, each information storage section is separately stored on the recording medium and on the recording information storage circuit provided outside the recording medium, thereby preventing unauthorized copying. And the size of the recording information storage circuit provided other than the recording medium can be reduced.

According to the eighth aspect of the invention, there is an effect that the scale of the two information storage units themselves, the recording position information storage unit and the recordable position information storage unit, can be made very small.

According to the ninth aspect of the present invention, since the recording / reproducing device is incorporated in the receiver, recording / reproducing can be performed by the receiver alone.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a recording / reproducing apparatus according to Embodiment 1 of the present invention.

FIG. 2 is a diagram showing a relation between information tables according to the first embodiment of the present invention.

FIG. 3 is a configuration diagram of a recording / reproducing device according to an example of Embodiment 1 of the present invention.

FIG. 4 is a diagram showing an association of information tables in a modification (1) of the first embodiment of the present invention.

FIG. 5 is a diagram showing a relation between information tables in a modified example (2) of the first embodiment of the present invention.

FIG. 6 is a diagram showing an association of information tables in a modification (3) of the first embodiment of the present invention.

FIG. 7 is a configuration diagram of a recording / reproducing apparatus according to Embodiment 2 of the present invention.

FIG. 8 is a configuration diagram of a recording / reproducing device according to an example of Embodiment 2 of the present invention.

FIG. 9 is a configuration diagram of a recording / reproducing apparatus according to Embodiment 3 of the present invention.

FIG. 10 is a configuration diagram of a recording / reproducing device according to an example of Embodiment 3 of the present invention.

FIG. 11 is a configuration diagram of a recording / reproducing apparatus according to Embodiment 4 of the present invention.

FIG. 12 is a configuration diagram of a recording / reproducing apparatus according to an example of Embodiment 4 of the present invention.

FIG. 13 is a configuration diagram of a recording / reproducing apparatus according to a modification (1) of the fourth embodiment of the present invention.

FIG. 14 is a configuration diagram of a recording / reproducing apparatus according to an example of a modification (1) of the fourth embodiment of the present invention.

FIG. 15 is a configuration diagram of a recording / reproducing device according to a modification (2) of the fourth embodiment of the present invention.

FIG. 16 is a configuration diagram of a recording / reproducing apparatus according to an example of a modification (2) of the fourth embodiment of the present invention.

FIG. 17 is a configuration diagram of a digital broadcast receiver incorporating a recording / reproducing device according to Embodiment 5 of the present invention.

FIG. 18 is a configuration diagram of a conventional recording / reproducing apparatus.

[Explanation of symbols]

101 data recording unit, 102 data recording / reading circuit, 103 instruction circuit, 104 recording information storage circuit,
105 search information table, 106 position information table, 107 recordable position information table, 108 auxiliary information table, 111 hard disk, 112 hard disk control circuit, 113 microcomputer,
114 recorded information storage circuit, 124 non-volatile memory,
134 recording information storage circuit, 144 non-volatile memory,
201 first storage circuit, 202 second storage circuit, 211
Nonvolatile memory, 212 volatile memory, 222 memory, 301 recording medium, 311 hard disk, 3
21 recording medium, 331 hard disk, 405 duplication search information table, 406 duplication position information table,
407 Copy recordable position information table, 408 Copy incidental information table, 501 Digital broadcast tuner, 5
02 recording / reproducing device, 503 selection circuit, 504 decoding processing circuit, 505 operation control circuit.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 5/44 H04N 5/92 H 5/781 5/781 510Z 5/765 510L 5/781 510E 510F 5 / 91 L G11B 27/02 K F term (reference) 5C025 AA23 BA27 BA30 DA01 5C053 FA20 FA23 FA27 GB01 GB05 GB37 JA24 KA01 KA24 LA07 LA11 5D044 AB07 BC01 CC04 DE03 DE12 DE49 DE53 DE57 DE58 HL11 HL14 5D110 AA13 CB04

Claims (9)

[Claims] A data recording unit for recording data to be input; a recording information holding unit for holding information relating to data recording; and a data recording unit for storing the data on the data recording unit based on the information held by the recording information holding unit. A first position for providing a data write position and a data read position from the data recording unit;
Instruction means for creating and outputting a second instruction signal; data recording control means for controlling data recording on the data recording section based on the first instruction signal; and data recording section based on the second instruction signal. Data reading control means for controlling reading of recorded data, wherein the recording information holding means stores information on a recording position of the data in each recording unit on the data recording section for each information storage position A recording position information storage unit, a search information storage unit that stores search information including the information storage position of the recording position information storage unit for each recording unit, and stores information of recordable positions on the data recording unit. A recording-possible position information storage unit for performing the recording of the input data in each recording unit; (a) the instruction unit accesses the recording position information storage unit, The information storage location to be used this time is selected from the empty areas among the information storage locations, and thereafter, the search information storage unit is accessed, and the selected information storage location is used as the search information as the search information. (B) the instruction means accesses the recordable position information storage unit, and stores the recordable position information to be used this time from the recordable position information to the data recording unit. And the selected recordable position information is output as the first instruction signal, and (c) the instruction means accesses the recording position information storage unit to record the input data. The recording position information on the data recording unit is additionally stored in the selected information storage position, and the instruction unit accesses the recordable position information storage unit, While deleting the selected recordable position information, in the operation of reproducing the recorded data in each recording unit, (d) the instruction means accesses the search information storage unit to determine the recorded data to be reproduced. Confirm which information storage position the recording position information is on the recording position information storage unit, access the recording position information storage unit based on the information obtained by the confirmation, and store it in the corresponding information storage position A recording / reproducing apparatus, wherein the recording / reproducing apparatus retrieves the recorded recording position information, creates and outputs the second instruction signal as the retrieved data reading position from the data recording unit. 2. The recording / reproducing apparatus according to claim 1, wherein the data recording unit is a recording medium, and the recording information holding unit is a recording information storage circuit provided outside the recording medium. The recording / reproducing apparatus, wherein the instruction means directly exchanges a signal with the recording information storage circuit. 3. The recording / reproducing apparatus according to claim 2, wherein the recording medium is a disk-type medium, and the recording information storage circuit is a storage circuit capable of performing a faster response operation than the disk-type medium. A recording / reproducing apparatus characterized by the above-mentioned. 4. The recording / reproducing apparatus according to claim 1, wherein the recording information holding means is a first recording information holding means and a second recording information capable of performing a faster response operation than the first recording information holding means. Holding means, wherein the first record information holding means stores first and second record position information corresponding to the record position information storage unit, the search information storage unit, and the recordable position information storage unit, respectively. A storage unit, a first search information storage unit, and a first recordable position information storage unit, wherein the second record information holding unit includes the first record position information storage unit, the first search information storage unit, and the first Areas that can constitute the second recording position information storage unit, the second search information storage unit, and the second recordable position information storage unit, where the information stored in each of the first recordable position information storage units can be duplicated. With When the main power supply of the recording / reproducing apparatus is turned on, the instructing unit sets k (1) in the first recording position information storage unit, the first search information storage unit, and the first recordable position information storage unit.
≦ k ≦ 3) The information stored in the information storage units is extracted, and k in the second recording position information storage unit, the second search information storage unit, and the second recordable position information storage unit is extracted. The extracted information is stored in the corresponding copy information storage units, and (3-k) of the first recording position information storage unit, the first search information storage unit, and the first recordable position information storage unit. )
A second information storage unit, a portion including the k pieces of the duplicated information storage units in the second recording position information storage unit, the second search information storage unit, and the second recordable position information storage unit,
A recording / reproducing apparatus, comprising three information storage units included in the recording information holding unit: the recording position information storage unit, the search information storage unit, and the recordable position information storage unit. 5. The recording / reproducing apparatus according to claim 4, wherein the data recording unit is a recording medium, and the first and second recording information holding units are first and second recording information storage units provided outside the recording medium. A second storage circuit, wherein the instructing means includes the (3-k) in the first storage circuit.
A recording / reproducing apparatus for directly exchanging signals between the plurality of information storage units and the k copy information storage units in the second storage circuit. 6. The recording / reproducing apparatus according to claim 1, further comprising a recording medium, wherein the recording medium has the data recording unit and the recording information holding unit therein. , Recording and playback devices. 7. The recording / reproducing apparatus according to claim 1, further comprising a recording medium, wherein the recording medium has the data recording unit and a part of the recording information holding unit therein. The other part of the recording information holding means comprises a recording information storage circuit provided outside the recording medium,
Recording and playback device. 8. The recording / reproducing apparatus according to claim 1, wherein the search information storage unit includes at least an index value for each recording unit and an entry value that is a reference value of the recording position information storage unit. In the recording position information storage unit, the entry value, the position information of the already-consecutive recording portion at a continuous position on the data recording unit indicated by the entry value, and the The next entry value indicating the next consecutively recorded portion after the already recorded portion is described for each entry value, and the recordable position information storage section stores the end of the sequence on the data recording section. Information indicating the position of the recording portion is described. Both the already-consecutive recording portion and the continuation-end recording portion are indicated by the start position and the end position of the continuation portion, and the position information in the middle of the continuation portion Is Serial wherein the not described in the recording position information on the storage unit and the recordable position information storage unit on the recording and reproducing apparatus. 9. A broadcast receiving means for receiving a digital broadcast, and the recording / reproducing apparatus according to claim 1 connected to an output of said broadcast receiving means. A digital broadcast receiver.