JP2005332515A - Information recording and reproducing apparatus and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To manage only reproduction stop position information desired by a user. <P>SOLUTION: This apparatus records a resume point at which the reproduction of information recorded in a hard disk is stopped, and at the time of next reproduction, reproduces information from a reproduction stop position based on the recorded resume point. Therefore, when information is read out and reproduced from the hard disk, and a command signal by a reproduction stop key or a trick play key is inputted (S18, S22), and the signal indicating operation of a specific key is inputted with a command signal of reproduction stop operation (S20, S24), reproduction stop position information indicating a position at which reproduction is stopped is obtained. The reproduction stop position information is recorded in a prescribed recording region as a resume point whenever the reproduction stop position information is obtained (S21, S25). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an information recording / reproducing apparatus and method, and more particularly to an information recording / reproducing apparatus and method capable of managing a resume point when information recorded on a recording medium is reproduced.

  2. Description of the Related Art Conventionally, there is a technique that enables recording based on recorded information by recording a plurality of types of resume points corresponding to each of a plurality of users who reproduce the title data recorded on a disc. Is provided. The resume point generally indicates the position on the disc of information read when playback is stopped, for example, stored address data.

For example, Patent Documents 1 and 2 disclose a technique of recording a resume point at the time of normal reproduction stop for each of a plurality of users and reproducing it using the resume point. Patent Document 3 discloses that a resume point at the time of trick play such as fast forward or fast reverse reproduction is recorded for each program.
JP 2003-151245 A JP 2003-77257 A JP 2002-10215 A

  However, in the conventional resume point management, it is disclosed that a plurality of types of resume points are recorded for each title data corresponding to each of a plurality of users. There is an adverse effect that the resume point at the time of trick play which is not desired by the user is recorded. Also, resume points could not be managed for each type of trick play.

  SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an information recording / reproducing apparatus and method capable of managing only reproduction stop position information desired by a user.

  An information recording / reproducing apparatus according to an aspect of the present invention records information on a position where reproduction of information recorded on a recording medium is stopped, and information from the reproduction stop position based on the recorded reproduction stop position information at the next reproduction. An information recording / reproducing apparatus for reproducing the information, and each time reproduction stop position information is given, reproduction stop position recording means for recording the reproduction stop position information in a predetermined recording area, and reading and reproducing the information from the recording medium When a playback stop command signal is input, a playback stop unit for stopping playback of information from the recording medium and a signal indicating a specific operation are input together with the playback stop command signal. A reproduction stop position acquisition unit that obtains reproduction stop position information indicating a position where reproduction is stopped by the reproduction stop unit and gives the reproduction stop position information to the reproduction stop position recording unit.

  Accordingly, the reproduction stop position information is given to the reproduction stop position recording means and recorded in a predetermined recording area only when a specific operation is performed together with the reproduction stop operation.

  Therefore, when the user desires to record the reproduction stop position information, the user only needs to perform a specific operation together with the reproduction stop operation, and only performs the reproduction stop operation when not desired.

  Preferably, the reproduction stop operation includes a plurality of types of operations, and the reproduction stop position recording means records the given reproduction stop position information in a predetermined recording area in association with the type of the reproduction stop operation.

  Therefore, the reproduction stop position information can be recorded in association with the corresponding type of reproduction stop operation.

  Preferably, the plurality of types of operations are trick operations for starting different types of playback during normal playback.

  Therefore, it is possible to record playback stop position information when playback is stopped by performing a trick operation.

  Preferably, the reproduction stop position recording means associates the user data with the given reproduction stop position information for each previously acquired user data for identifying a user who is currently using the apparatus, and a predetermined recording area. To record.

  Therefore, the reproduction stop position information can be recorded for each user.

  Preferably, the reproduction stop position recording unit records the image data generated based on the information of the position where reproduction is stopped by the reproduction stop unit and the given reproduction stop position information in association with each other in a predetermined recording area.

  Therefore, the reproduction stop position information can be recorded in association with the image data based on the reproduction stop position information.

  Preferably, out of the contents recorded in the predetermined recording area, the display means for displaying the contents corresponding to the user who is currently using the apparatus, and the reproduction stop position information displayed by the display means is instructed from the outside. Reproducing means for reproducing information from the reproduction stop position of the recording medium based on the reproduction stop position information.

  Accordingly, the recorded reproduction stop position information and the like are displayed, and when the user selectively designates a desired one from the displayed reproduction stop position information, the information is reproduced from the reproduction stop position based on the designated reproduction stop position information. Can be resumed. When an image based on image data is displayed as display content, desired reproduction stop position information can be easily specified.

  An information recording / reproducing method according to an aspect of the present invention records information on a position where reproduction of information recorded on a recording medium prepared in advance is stopped, and the reproduction is performed based on the recorded reproduction stop position information at the next reproduction. An information recording / reproducing method for reproducing information from a stop position, wherein each time reproduction stop position information is given, a reproduction stop position recording step for recording the reproduction stop position information in a predetermined recording area prepared in advance. A reproduction stop step for stopping reproduction of information from the recording medium in response to the input of a reproduction stop operation command signal when information is read from the recording medium and reproduced, and a reproduction stop operation command signal In addition, when a signal indicating a specific operation is input, a reproduction stop position recording step is performed to obtain reproduction stop position information indicating a position where reproduction is stopped by the reproduction stop step. And a playback stop position obtaining step of providing.

  According to the present invention, the reproduction stop position information is provided to the reproduction stop position recording means and recorded in the predetermined recording area only when a specific operation is performed together with the reproduction stop operation. When recording is desired, a specific operation may be performed together with the reproduction stop operation. When not desired, only the reproduction stop operation may be performed.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram of a digital broadcast receiving apparatus equipped with a disk recording / reproducing apparatus according to an embodiment of the present invention. Referring to FIG. 1, a digital broadcast receiver 1 receives a digital broadcast signal DS via an external antenna 17 and extracts a signal of a designated channel, and a digital signal received via the tuner 2. The encoder 18 is encoded so that it can be digitally processed, the data output from the encoder 18 is recorded on the hard disk 4, the disk drive 3 for reading data from the hard disk 4, and each part in the digital broadcast receiver 1 is controlled. CPU (Central Processing Unit) 5, various data including reservation contents 61 such as recording, and a memory 6 for storing a control program read and executed by CPU 5, timer 7 for timing, operation contents and apparatus operation information, etc. Display unit 8 for displaying and informing the user, for the user to control the operation An infrared command signal or data signal transmitted when a user operates an operation unit 9 including keys, switches, buttons or the like, and an external remote controller (abbreviation of a remote controller) 11 to give commands or data. Remote control receiving unit 10 for receiving, decoder 13 for inputting data read from hard disk 4 via disk drive 3, encoding and decoding, and signal output from decoder 13 for input and connection to the outside The video / audio output processing unit 15 processes the video signal or the audio signal that can be output by the monitor 16.

  The monitor 16 is a television receiver or the like and has a function of outputting video and audio. The decoder 13 has an OSD (on screen display) 14 that is a circuit for displaying a corresponding image on the monitor 16 via the video / audio output processing unit 15 based on graphic data given from the CPU 5.

  The remote controller 11 is a specific key 12 that is operated when managing resume points during trick play, a fast-forward key 111 that is operated to instruct fast-forwarding of reproduction, and a rewind key 112 that is operated to instruct rewind. And a stop key 113 and a cursor key 114 which are operated to instruct to stop normal reproduction.

  Here, trick play (trick operation) is a reproduction stop by the stop key 13 for stopping forward reproduction at a normal speed corresponding to the data reading speed according to the data recording mode (bit rate) (hereinafter referred to as normal reproduction). This is an operation different from the operation, and refers to an operation for performing different types of playback operations during normal playback. For example, normal speed reverse playback by operating the rewind key 112, fast forward speed forward playback by operating the fast forward key 111, fast forward speed reverse playback, slow speed forward playback and reverse playback, skip playback, etc. The operation to start. When these trick plays are performed, a normal playback stop command and a playback operation start command for the corresponding trick play are issued. Here, in order to simplify the explanation, the remote controller 11 is provided with only the fast forward key 111 and the rewind key 112 for trick play, but other trick play keys may be provided.

  FIG. 2 shows a flowchart of a resume point management procedure executed by the CPU 5 of the digital broadcast receiver 1 of FIG. The flowchart of FIG. 2 is stored in advance in the memory 6 as a program, and the resume point management function is realized by the CPU 5 reading this program from the memory 6 and executing it.

  In FIG. 2, when playback is stopped (when playback is stopped when the fast-forward key 111 is operated during playback, when playback is stopped when the rewind key 112 is operated during playback, or when the stop key 113 is operated during playback). A so-called resume function is described in which the playback stop position information at that time is memorized (when playback is stopped) and playback can be started from the position where playback was previously stopped when playback is resumed.

  FIG. 3 shows an example of recorded contents in the hard disk 4 of FIG. The hard disk 4 has an area E1 for storing the management table 40, an area E2 for storing the resume table 41, and an area E3 for storing the recording data 42. In this embodiment, a time-series data group such as individual program data is referred to as a “title”, and the data group of each title is stored as recording data 42 in the area E3.

  As shown in FIG. 4, the management table 40 in the area E1 manages management titles Bi (i = 1, 2,..., N) corresponding to each title in order to manage each title that is the recording data 42 in the area E3. Have Each management data Bi includes recording mode data D10, head address data D11, tail address data D12, and title data D13 for the corresponding title. The recording mode data D10 indicates a recording mode (for example, other than the standard mode, the triple speed mode, etc.) indicating the bit rate (bit / sec) when the corresponding title is recorded in the area E3. The start address data D11 and the end address data D12 indicate the start address and the end (last) address of the area E3 in which the data of each corresponding title is stored. In this embodiment, in order to simplify the explanation, it is assumed that the data of each title is stored in a continuous area in the area E3. Therefore, the data of each title is stored in a continuous area indicated by the head address data D11 to the tail address data D12. The title data D13 is data for uniquely identifying the corresponding title, and indicates a title data group name (program name), a title identification number, and the like.

  As shown in FIG. 5, the resume table 41 in the area E <b> 2 has resume information Aj (j = 1, 2, 3,..., M) corresponding to each user of the digital broadcast receiving apparatus 1 in FIG. 1.

  Resume information Aj is associated with each of user data D1 indicating a user name and a user number for uniquely identifying a corresponding user, and a resume operation (normal reproduction stop operation) performed by the corresponding user. It has data D2, storage time data D3, resume type data D4, title data D5, and still image data D6. The title data D5 is data for uniquely identifying the title for which the corresponding resume operation has been performed, and indicates, for example, the name of the program.

  The reproduction time data D2 corresponds to the resume point, and here, it indicates the time indicating the timing when the corresponding resume operation is performed, but it may indicate the address indicating the reproduction stop position as in the conventional case. Specifically, the reproduction time data D2 indicates the time required for normal reproduction of the title data group identified by the reproduced title data D5 from the start address to the resume point address.

  The storage time data D3 indicates the time (year, month, day, hour, minute) when the corresponding resume operation was performed. The resume type data D4 is data for indicating which type of key operation of the fast-forward key 111, the rewind key 112, and the playback stop key 113 of the remote controller 11 is performed.

  The still image data D6 indicates a still image based on data that has been reproduced when the corresponding resume operation is performed, that is, at the timing indicated by the reproduction time data D2. The still image is generated based on the input video data by the CPU 5 receiving the video data output from the disk drive 3 at the timing indicated by the reproduction time data D2, and stored in the resume table 41.

  Next, a procedure for managing the resume information Aj will be described with reference to the flowchart of FIG.

  First, in order to manage the resume information Aj for each user in the digital broadcast receiving apparatus 1, the user is given a user name (password) assigned in advance to each user by operating the remote controller 11. Assume that you are entering from data. The CPU 5 temporarily stores the input user name in an internal memory (not shown) of the CPU 5.

  Next, the CPU 5 determines whether or not the normal mode reproduction is instructed based on the command given by the operation of the remote controller 11 (step S (hereinafter simply referred to as S) 10). Here, playback in the normal mode refers to playback without using the resume information Aj registered in the past. If it is determined that the normal mode reproduction is instructed (YES in S10), the process proceeds to S14 described later, but if it is determined that the normal mode reproduction is not instructed (NO in S10), The CPU 5 performs a resume point selection process (S12).

  Specifically, the CPU 5 searches the resume table 41 of the hard disk 4 based on a user name inputted in advance, identifies user data D1 indicating the user name, and resume information Aj of the identified user data D1. Read out. Based on the read resume information Aj, the CPU 5 creates the graphic data of the individual resume point list and outputs it to the OSD 14, so the individual resume point is sent to the monitor 16 via the OSD 14 and the video / audio output processing unit 15. The list image, for example, the image of FIG. 6 is displayed superimposed on the display image at that time.

  In the individual resume point list of FIG. 6, based on the read resume information Aj, the user is displayed based on the corresponding user data D1, and the information indicated by the other data D2 to D6 is stored. The time D3 is displayed in ascending order of time. Here, the storage time data D3 are displayed in ascending order, but may be displayed in descending order. Further, it may be displayed for each type of resume operation, or may be displayed for each title name. Such display mode switching may be performed by a user operation.

  When the user operates the remote controller 11 while referring to the screen of FIG. 6 and desires to reproduce the title from the desired resume point (reproduction time data D2), the cursor key 114 is operated on the reproduction time data D2. Then, the designation key (not shown) of the remote controller 11 is operated by selectively designating. Since the command signal by this operation is given to the CPU 5, the CPU 5 makes a special data such as blinking the data D3 to D6 corresponding to the reproduction time data D2 selected as shown by the arrow AR in FIG. Display in a manner. Further, reading is started from data at the address indicated by the selectively designated reproduction time data D2, and is displayed on the monitor 16, and thereafter normal reproduction is started (S14, S16). Here, since an image based on the data D6 is displayed, the user can easily specify the desired reproduction time data D2.

  Thereafter, the CPU 5 determines whether or not the user has performed a trick play key operation on the remote controller 11 based on a command signal input from the remote controller receiver 10 (S18). If no trick play key operation is performed (NO in S18), the process proceeds to S22 described later. If a trick play key operation is performed (YES in S18), the normal playback operation is paused and operated. The CPU 5 controls the disk drive 3 to perform trick play processing according to the type of the key (S19). Conventionally known procedures are applied to the trick play process.

  Thereafter, the CPU 5 determines whether or not the specific key 12 is pressed together with the trick play key operation based on a command signal input from the remote control receiver 10 (S20). When it is determined that the specific key 12 is not pressed (NO in S20), the process proceeds to S22 described later, but when it is determined that the specific key 12 is pressed (YES in S20), the resume point The CPU 5 generates data D2 to D6 according to the current trick play operation, adds the stored data to the resume information Aj of the corresponding user, and stores it (S21).

  Specifically, the CPU 5 inputs information indicating the address of the data read from the hard disk 4 when the trick play key operation is performed from the disk drive 3, and based on the input address information, the management table 40. And the management data Bi corresponding to the area indicated by the start address data D11 and the end address data D12 is specified. Then, the reproduction time data D2 is obtained by dividing the displacement (difference) from the address indicated by the start address data D11 of the specified management data Bi to the address indicated by the input address information by the recording mode data D10 of the management data Bi.

  Further, the CPU 5 obtains the storage time data D3 based on the timing information inputted from the timer 7 at the timing when the key operation of trick play is performed.

  Further, the CPU 5 specifies resume type data D4 indicating the type of resume operation (operation key) based on a command signal input from the remote control receiver 10.

  Further, the CPU 5 sets the title data D13 of the specified management data Bi as the title data D5, and creates the still image data D6 as described above.

  Thereafter, the CPU 5 determines whether or not the reproduction stop key 113 has been operated based on a command signal input from the remote control receiver 10 (S22). If the reproduction stop key 113 has not been operated (NO in S22), it is determined whether or not a series of normal reproduction has been completed, that is, whether or not reproduction of all recorded data 42 in the area E4 has been completed. (S26). If the reproduction has not been completed (NO in S26), the process returns to S16 and the reproduction is continued. If the reproduction has been completed (YES in S26), the series of processes is terminated.

  On the other hand, if it is determined that the playback stop key 113 has been operated (YES in S22), the CPU 5 controls the disk drive 3 to perform processing for stopping the playback operation (S23). A conventionally known procedure is applied to the reproduction stop process.

  Thereafter, the CPU 5 determines whether or not the specific key 12 has been pressed along with the operation of the playback stop key 113 based on the command signal input from the remote control receiver 10 (S24). If it is determined that the specific key 12 has not been pressed (NO in S24), the series of processing ends. If not (YES in S24), the CPU 5 has operated the playback stop key 113. Playback time data D2, save time data D3, resume type data D4, title data D5 and still image data D6 are obtained and stored in addition to the resume information Aj corresponding to the user (S25). Thereafter, the series of processing is terminated.

  In this way, when the user desires to record resume information, the user can easily record by operating the specific key 12 together with the trick play key or operating the specific key 12 together with the stop key 13 of the reproduction. it can. Conversely, when not desired, the specific key 12 need not be operated.

  Here, even when the playback stop key 113 is operated, the resume information Aj is stored only when the specific key 12 is pressed, but it is stored regardless of whether the specific key 12 is pressed or not. May be.

  Here, the resume information Aj is stored when the specific key 12 is operated. However, when the digital broadcast receiving apparatus 1 is powered off during reproduction and the reproduction is stopped, the resume key Aj is stored. The resume information Aj may be stored regardless of the operation.

  In the resume information Aj, if the data is old, that is, the data D2 to D6 indicating that the time indicated by the corresponding storage time data D3 indicates the past is permitted to be overwritten with new data D2 to D6. May be.

  Further, a special flag indicating whether or not the reproduction is resumed from the address indicated by the reproduction time data D2 is provided in association with the data D2 to D6, and the data D2 to D6 indicating that the flag is resumed are new data. Overwriting with D2 to D6 may be permitted.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

1 is a block configuration diagram of a digital broadcast receiving apparatus equipped with a disk recording / reproducing apparatus according to an embodiment of the present invention. It is a flowchart of the resume point management procedure which concerns on embodiment of this invention. It is a figure which shows the example of the recording content in the hard disk which concerns on embodiment of this invention. It is a figure which shows the example of the content of the management table which concerns on embodiment of this invention. It is a figure which shows the example of the content of the resume table which concerns on embodiment of this invention. It is a figure which shows the example of a display screen which concerns on embodiment of this invention.

Explanation of symbols

  3 Disk drive, 4 Hard disk, 11 Remote control, 40 Management table, 41 Resume table, 12 Specific key, 111 Fast forward key, 112 Rewind key, 113 Stop key, Aj Resume information, Bi management data, D1 User data, D2 Playback time Data, D3 storage time data, D4 resume type data, D5 title data, D6 still image data, D10 recording mode data, D11 start address data, D12 end address data.

Claims (8)

An information recording / reproducing apparatus that records information on a position where reproduction of information recorded on a recording medium is stopped, and reproduces information from the reproduction stop position based on the recorded reproduction stop position information at the next reproduction,
Reproduction stop position recording means for recording the reproduction stop position information in a predetermined recording area each time the reproduction stop position information is given;
A reproduction stop means for stopping reproduction of information from the recording medium in response to the input of a reproduction stop operation command signal when reading and reproducing information from the recording medium;
When a signal indicating a specific operation is input together with a command signal for the playback stop operation, the playback stop position information indicating the position at which playback has been stopped by the playback stop means is obtained and given to the playback stop position recording means Stop position acquisition means,
The playback stop operation includes a plurality of types of operations,
The reproduction stop position recording means records the given reproduction stop position information in the predetermined recording area in association with the type of the reproduction stop operation;
The plurality of types of operations are trick operations for starting different types of playback during normal playback,
The reproduction stop position recording means is
For each previously acquired user data for identifying a user who is currently using the device, the user data and the reproduction stop position information given are associated and recorded in the predetermined recording area,
The reproduction stop position recording means is
The image data generated based on the information of the position where the reproduction is stopped by the reproduction stop means and the reproduction stop position information given are associated and recorded in the predetermined recording area,
The information recording / reproducing apparatus comprises:
Display means for displaying content corresponding to the user currently using the device among the content recorded in the predetermined recording area;
An information recording unit further comprising: a reproducing unit configured to reproduce information from the reproduction stop position of the recording medium based on the reproduction stop position information instructed from outside among the reproduction stop position information displayed by the display unit. Playback device. An information recording / reproducing apparatus that records information on a position where reproduction of information recorded on a recording medium is stopped, and reproduces information from the reproduction stop position based on the recorded reproduction stop position information at the next reproduction,
Reproduction stop position recording means for recording the reproduction stop position information in a predetermined recording area each time the reproduction stop position information is given;
A reproduction stop means for stopping reproduction of information from the recording medium in response to the input of a reproduction stop operation command signal when reading and reproducing information from the recording medium;
When a signal indicating a specific operation is input together with the playback stop operation command signal, the playback stop position information indicating the position at which playback has been stopped by the playback stop means is obtained and given to the playback stop position recording means An information recording / reproducing apparatus comprising stop position acquisition means. The playback stop operation includes a plurality of types of operations,
3. The information recording / reproducing apparatus according to claim 2, wherein the reproduction stop position recording unit records the given reproduction stop position information in the predetermined recording area in association with the type of the reproduction stop operation.   4. The information recording / reproducing apparatus according to claim 3, wherein the plurality of types of operations are trick operations for starting different types of reproduction during normal reproduction. The reproduction stop position recording means is
For each previously acquired user data for identifying a user who is currently using the apparatus, the user data is associated with the given reproduction stop position information and recorded in the predetermined recording area. 5. The information recording / reproducing apparatus according to any one of claims 2 to 4. The reproduction stop position recording means is
The image data generated based on the information of the position where the reproduction is stopped by the reproduction stop unit and the given reproduction stop position information are associated with each other and recorded in the predetermined recording area. 6. The information recording / reproducing apparatus according to any one of 5 above. Display means for displaying content corresponding to the user currently using the device among the content recorded in the predetermined recording area;
The information processing apparatus further comprises reproduction means for reproducing information from the reproduction stop position of the recording medium based on the reproduction stop position information instructed from outside of the reproduction stop position information displayed by the display means. 5. The information recording / reproducing apparatus according to 5 or 6. Information recording for recording information at a position where reproduction of information recorded on a recording medium prepared in advance is stopped, and reproducing information from the reproduction stop position based on the recorded reproduction stop position information at the next reproduction A playback method,
A reproduction stop position recording step of recording the reproduction stop position information in a predetermined recording area prepared in advance each time the reproduction stop position information is given;
A reproduction stop step for stopping reproduction of information from the recording medium in response to the input of a reproduction stop operation command signal when reading and reproducing information from the recording medium;
When a signal indicating a specific operation is input together with the reproduction stop operation command signal, the reproduction stop position information indicating the position where the reproduction is stopped by the reproduction stop step is obtained, and the reproduction is given to the reproduction stop position recording step An information recording / reproducing method comprising a stop position acquisition step.

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