JP2005176084A - Information record reproducing apparatus and information recording method for information record reproducing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To recover abnormal record automatically, and to improve convenience for a user considerably, without needs for the user to reproduces and check the recorded information. <P>SOLUTION: If picture recording quality for a recorded program deteriorates after the completion of picture recording, either an internet side or an antenna side acquires an EPG (Electronic Program Guide) and retrieves the time for a repeat broadcast to the quality-deteriorated picture recording program (S110), and reserves picture recording for the repeat broadcast (S111). In addition, deterioration in the picture recording quality is monitored during picture recording (S104). If deterioration in the picture recording quality occurs, an abnormal recording indicator LED is lit (S114), and a ratio Ara of a deterioration time to a scheduled program picture recording time is calculated (S115). Processing for stopping picture recording and deleting a recorded region (S118) or processing for decreasing a picture recording rate (S120) is conducted by user setting, when the Ara exceeds an allowable range established by a user. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention can receive broadcast information and record it on a medium such as an HDD (Hard Disk Drive) or DVD (Digital Versatile Disc), and can output and reproduce the recorded information. The present invention relates to an information recording / reproducing apparatus capable of performing reservation recording using an electric program guide) and an information recording method of the information recording / reproducing apparatus.

  In recent years, received broadcasts can be recorded on media such as a built-in HDD (Hard Disk Drive) or DVD (Digital Versatile Disc), and the recorded information can be output and played back. EPG (Electric Program Guide) Information recording / reproducing apparatuses such as so-called HDD video recorders, DVD video recorders, and digital TVs with built-in HDD video recorders, which can be reserved for recording, have been developed and put to practical use.

  In such a conventional information recording / reproducing apparatus, when a user makes a recording reservation for a program, although the recording operation is normally performed and finished, the weather condition deteriorated during the recording, Due to an abnormality or other reasons, there may be a phenomenon that an image of poor quality is recorded or a video is not recorded at all.

  In such a case, in the conventional information recording / reproducing apparatus, since there is no means for detecting the deterioration of the quality of the recording screen and no means for leaving the occurrence history of the quality deterioration, the user reproduces the contents of the recording screen after the recording is finished, It is not possible to recognize that the recording of the degradation screen has been performed unless the work for confirming the degradation point is performed.

Therefore, for example, in Japanese Patent Application Laid-Open No. 2001-135026, when a recording error occurs in a video library system including a plurality of recording media and a plurality of recording / reproducing devices, the recording medium is defective or the recording / reproducing device is defective. Thus, there is disclosed a technique for appropriately selecting a recording medium and a recording / reproducing apparatus that do not have an abnormality, performing recording, and notifying the outside that an error has occurred.
JP-A-2001-135026

  However, although the technique of Patent Document 1 described above can effectively perform a recording compensation function for a video library system including a plurality of recording media and a plurality of recording / reproducing apparatuses, in general, one recording / reproducing apparatus is used. There is a problem in that an information recording / reproducing apparatus that records a broadcast on one recording medium cannot appropriately respond. Further, in the above-mentioned Patent Document 1, since the recording is not like recording a broadcast, information recording such as an HDD video recorder, a DVD video recorder, or a digital TV with a built-in HDD video recorder for recording the broadcast is performed. There is a problem that a problem peculiar to the reproducing apparatus cannot be solved. That is, in the conventional information recording / reproducing apparatus, even when the repeat broadcast is set for the recorded program in which the quality of the screen is deteriorated and the user is provided with an opportunity to record again, the user's Recording reservation work must be performed by operation. Therefore, there is a problem that the timing of recording a program in a satisfactory state is missed if the deterioration of the quality of the recording screen cannot be detected before repeat broadcasting.

  The present invention has been made in view of the above circumstances, and information that can automatically recover an abnormal recording without greatly reproducing and confirming the recorded information by the user, and can greatly improve the convenience for the user. It is an object to provide a recording / reproducing apparatus and an information recording method for the information recording / reproducing apparatus.

  The present invention provides information receiving means for receiving information, information recording means for recording information preset from the information obtained by the information receiving means on a predetermined recording medium, information to be recorded on the recording medium, and the recording Degradation detecting means for detecting degradation in quality of recorded information by comparing at least one of the information recorded on the medium with a preset reference value, and degrading the quality of the recorded information by the quality degradation detecting means When the transmission information of the information substantially similar to the preset information is acquired and searched, and it is detected that there is a transmission schedule of the substantially similar information, the same as the above according to the transmission schedule. And information recording compensation means for making a recording reservation on the recording medium.

  According to the information recording / reproducing apparatus and the information recording method of the information recording / reproducing apparatus according to the present invention, the abnormal recording is automatically recovered without the user reproducing and confirming the recorded information. Can be greatly improved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 show an embodiment of the present invention, FIG. 1 is a block diagram showing a schematic configuration of the entire digital TV with a built-in HDD video recorder, and FIG. 2 is a flowchart of a reserved recording program for the digital TV with a built-in HDD video recorder. FIG. 3 is an explanatory diagram of each display screen selected by the user. In this embodiment, a digital TV with a built-in HDD video recorder will be described as an example of the information recording / reproducing apparatus.

  In FIG. 1, reference numeral 1 denotes a digital TV with a built-in HDD video recorder. The digital TV 1 with a built-in HDD video recorder can be connected to an antenna 2 for receiving a broadcast and the Internet such as a telephone line or a LAN (Local Area Network). The communication line 3 is connected.

  The digital TV 1 with a built-in HDD video recorder includes a main controller 1a, a receiver 1b, an HDD recording / reproducing unit 1c, a decoder 1d, a video signal generator 1e, a monitor 1f, a communication controller 1g, an EPG decoder 1h, a memory 1i, The operation unit 1j, the switching unit 1k, and the recording abnormality display LED 11 are mainly configured.

  All the components 1b to 1l are controlled by a main controller 1a constituted by a microcomputer (abbreviation: microcomputer).

  When the broadcast received by the monitor unit 1f is displayed as it is, the broadcasted radio wave is received by the antenna 2, and the video data stream received via the reception unit 1b is output to the decoder unit 1d. The encoded signal output to the decoder unit 1d is decoded into an original signal, a video signal is generated by the video signal generation unit 1e, and is displayed by the monitor unit 1f.

  In the recording state, the video data stream received via the receiving unit 1b is output to the HDD recording / reproducing unit 1c and recorded on the HDD by the HDD recording / reproducing unit 1c. When reproducing the data recorded on the HDD, the HDD recording / reproducing unit 1c outputs it to the decoder unit 1d. The encoded signal outputted to the decoder unit 1d is decoded into the original signal, A video signal is generated by the video signal generator 1e and displayed on the monitor 1f.

  If the communication line 3 is connected to the communication control unit 1g and the user has set the acquisition source of EPG data (electronic program guide data) to the Internet as described later, the main control unit 1a When the quality of information is lowered, the communication control unit 1g is connected to the Internet, EPG data is acquired, and EPG decoder 1h is used to acquire program information being broadcast and scheduled to be broadcast. When the user has set the acquisition source of EPG data to the reception information from the antenna 2, the main control unit 1a passes through the antenna 2 and the reception unit 1b when the quality of the recorded information is deteriorated. The broadcast is received and EPG data is acquired from the broadcast data. Then, program information being broadcast and scheduled to be broadcast is acquired using the EPG decoder 1h.

  Here, the deterioration of the quality of the recorded information by the main control unit 1a is, for example, a decrease in the reception level of the carrier wave caused by the deterioration of weather conditions or the quality of the recorded information caused by an abnormality on the HDD side which is the recording medium. When the recording quality level is equal to or lower than a threshold value (a preset reference value) set in the main control unit 1a in advance, it is determined that the quality of the recorded information is reduced. To do.

  In addition, the memory 1i is an integrated value (quality deterioration time ratio) of the degradation time of the recorded information with respect to the scheduled recording time of the program being recorded, which is calculated periodically by the main control unit 1a when the quality of the recorded information is degraded. Ara, that is, the ratio of the information recording time in which the quality is reduced in the entire recording time for recording the preset information on the recording medium is recorded. For example, if the recording time of a program is 1 hour, the quality degradation time ratio Ara is 50% when a total of 30 minutes is detected when the quality of the recorded information is degraded.

  Further, the operation unit 1j is a part where the user performs various operations on the digital TV with a built-in HDD video recorder with a remote control device, a switch, and the like. Various operation conditions such as a reproduction channel and an audio volume, a reservation time, Recording conditions such as a recording rate and various conditions described later when satisfactory recording cannot be performed are input.

  The switching unit 1k is a part for selecting whether the user acquires the EPG data from the Internet side or the antenna side when the quality of the recorded information is deteriorated. For example, FIG. As shown in (a), “Internet” and “antenna” options are prepared for “Which EPG do you obtain from?”.

  Further, the recording abnormality display LED 11 is provided at a position where the user can easily check, and is an LED that is turned on when the quality of the recorded information is deteriorated.

  As described above, in the embodiment of the present invention, the antenna 2 and the receiving unit 1b have a function as an information receiving unit, and the HDD recording / reproducing unit 1c has a function as an information recording unit. The display LED 11 has a function as a notification unit, and the main control unit 1a is configured to have a function as a quality reduction detection unit, an information recording compensation unit, and a quality reduction time ratio calculation unit.

  Next, the operation of the above configuration will be described with reference to the flowchart of the reserved recording program in FIG. First, in step (hereinafter abbreviated as “S”) 101, it is determined whether or not the recording start time has come. If the recording start time has come, the process proceeds to S102. Wait until the start time is reached without proceeding.

  If it is determined in S101 that the recording start time has come and the process proceeds to S102, a recording start process is executed, and the process proceeds to S103 to refer to the setting by the user as to whether or not to detect the recording quality. The selection by the user is performed, for example, by selecting and displaying the operation unit 1j as shown in FIG. 3B. In response to “Do you want to detect the recording quality?”, “YES” or “NO” This is done in advance by selecting either one.

  As a result of the determination in S103, if it is determined that the recording quality detection is set not to be executed, the process jumps to S106, and if it is determined that the re-recording is performed when the recording quality is deteriorated, S104 is performed. Proceed to

  When the process proceeds to S104, it is determined whether or not the recording quality has deteriorated. If the recording quality has not deteriorated, the process proceeds to S105, the measurement of the recording quality deterioration time is terminated, and the process proceeds to S106.

  As a result of the determination in S103 or when the process proceeds from S105 to S106, it is determined whether or not the recording end time (including recording interruption by the user's operation) has been reached. If the recording end time is reached, the process proceeds to S107, the recording end process is performed, and the process proceeds to S108.

  In S108, it is determined whether or not the recording quality has deteriorated. If there is no deterioration in the recording quality, the program exits as it is, and if there is a decrease in the recording quality, the process proceeds to S109.

  In S109, the setting by the user is referred to whether or not to execute re-recording when the recording quality is lowered. As shown in FIG. 3 (b), when the user selects “YES” in response to “Do you want to detect the recording quality”, the user's selection will be repeated when the recording quality is further reduced. This is performed in advance by selecting “Yes” or “No” for recording.

  As a result of the determination in S109, if it is determined that the re-recording when the recording quality is deteriorated is set, the process proceeds to S110, and if it is determined that the re-recording when the recording quality is deteriorated is set. Exit the program.

  In S110, the EPG is acquired from the user setting, that is, from either the Internet side or the antenna side, and the time of repeat broadcast for the recorded program with a lowered recording quality is searched.

  Thereafter, the process proceeds to S111, where the repeat broadcast searched in S110 is reserved for recording and the program is exited.

  On the other hand, if it is determined in S104 that the recording quality has deteriorated, the process proceeds to S112, where it is determined whether the recording quality deterioration time is being measured. If not, the process proceeds to S113, where the recording quality is decreased. Time measurement is started, the process proceeds to S114, the recording abnormality display LED 11 is turned on, and the processes from S103 are repeated.

  If it is determined in S112 that the recording quality degradation time is being measured, the process proceeds to S115, where the quality degradation time ratio Ara to the scheduled program recording time is integrated and calculated.

  Next, the process proceeds to S116, in which it is determined whether the quality degradation time ratio Ara is within the allowable range set in advance by the user. If it is within the allowable range, the processing from S103 is repeated, and if it exceeds the allowable range, the process proceeds to S117. Proceed with Here, the setting of the allowable range by the user is performed by, for example, displaying on the operation unit 1j as shown in FIG. 3C, and is displayed for "Please set the allowable range of the recording quality degradation time". It is set by sliding the slide bar.

  Then, if the allowable range is exceeded and the process proceeds to S117, it is determined whether or not the user setting for the recording with degraded quality is selected to stop recording. Here, the selection of whether or not to stop the recording of the user setting for the recording with degraded quality is performed by, for example, selection display of the operation unit 1j as shown in FIG. For “Do you want to stop recording when over”, select either “YES” or “NO” in advance.

  If recording stop is selected as a result of the determination in S117, the process proceeds to S118, the recording is stopped, the already recorded area is deleted, the HDD recording capacity is secured, and the processing from S108 is repeated. . If the recording stop is not selected, the process proceeds to S119, and it is determined whether or not the user setting for the recording with degraded quality is selected to decrease the recording rate. Here, the selection of whether or not to lower the user-set recording rate for recording with degraded quality is performed by, for example, selection display of the operation unit 1j as shown in FIG. For “Do you want to record”, it is performed in advance by selecting either “YES” or “NO”.

  As a result of the determination in S119, if lowering the recording rate is selected, the process proceeds to S120, the recording rate is lowered, and the processing from S103 is repeated. That is, it is possible to prevent the recording capacity of the HDD from being consumed at the high rate as it is for the program recording which is no longer required to be recorded at the high rate. If the decrease in recording rate is not selected, the processing from S103 is repeated as it is.

  As described above, according to the embodiment of the present invention, when the recording quality of the program being recorded is lowered, the EPG is automatically acquired, and the repeat broadcast time for the recorded program with the lowered recording quality is searched. Since it is designed to make recording reservations, the user does not need to check the recording quality, search for repeat broadcasts, and make reservations for recording these repeat broadcasts, so that repeat broadcasts can be recorded reliably, greatly improving convenience. can do.

  Also, even if the recording quality deteriorates, the recording can be stopped or the recording rate can be reduced according to the user's preference, so the recording when the recording quality deteriorates also matches the user's preference. Can be used.

  In the embodiment of the present invention, the digital TV with a built-in HDD video recorder has been described as an example of the information recording / reproducing apparatus. However, the present invention can also be applied to other apparatuses such as a HDD video recorder and a DVD video recorder. Needless to say.

  Further, in the embodiment of the present invention, an example has been described in which the user can make two selections of the selection of stopping the recording and the selection of reducing the recording rate with respect to the recording with the lowered recording quality. It may be an example that can only be selected.

Block diagram showing a schematic configuration of the entire digital TV with built-in HDD video recorder Flowchart of reserved recording program for digital TV with built-in HDD video recorder Illustration of each display screen selected by the user

Explanation of symbols

1 Digital TV with built-in HDD video recorder (information recording and playback device)
1a Main control unit (degradation detecting means, information recording compensation means, degrading time ratio calculating means)
1b Receiving unit (information receiving means)
1c HDD recording / reproducing unit (information recording means)
1d Decoder unit 1e Video signal generation unit 1f Monitor unit 1g Communication control unit 1h EPG decoder 1i Memory 1j Operation unit 1k Switching unit 1l Recording abnormality display LED (notification means)
2 Antenna (information receiving means)
3 communication lines
Agent Patent Attorney Susumu Ito

Claims (8)

Information receiving means for receiving information;
Information recording means for recording information preset from the information obtained by the information receiving means on a predetermined recording medium;
A quality deterioration detecting means for detecting a deterioration in quality of the recorded information by comparing at least one of the information recorded on the recording medium and the information recorded on the recording medium with a preset reference value;
When the quality degradation detection means detects a degradation in the quality of the recorded information, the transmission information of the information substantially the same as the preset information is acquired and searched, and there is a plan to transmit the information similar to the above. An information recording / reproducing apparatus comprising: information recording compensation means for making a recording reservation on the recording medium by making a reception reservation of substantially the same information as described above in accordance with the transmission schedule.   2. The information recording / reproducing apparatus according to claim 1, further comprising a notifying means for notifying the deterioration of the quality of the recording information when the quality deterioration detecting means detects the deterioration of the quality of the recorded information. The ratio of the time of information recording in which the quality is reduced in the total recording time for recording the preset information on the recording medium when the quality degradation detection means detects the quality degradation of the recorded information. Having a quality degradation time ratio calculating means for calculating
The information recording compensation means records the preset information when the percentage of the information recording time when the grade is reduced calculated by the grade reduction time ratio calculation means exceeds a preset allowable percentage. 3. The information recording / reproducing apparatus according to claim 1, wherein the information recording / reproducing apparatus is stopped and the information already recorded for the preset information is erased. The ratio of the time of information recording in which the quality is reduced in the total recording time for recording the preset information on the recording medium when the quality degradation detection means detects the quality degradation of the recorded information. Having a quality degradation time ratio calculating means for calculating
The information recording compensation means sets the recording rate when the ratio of information recording time calculated by the quality reduction time ratio calculating means exceeds the permissible ratio set in advance, and sets the recording rate as the current recording rate. 3. The information recording / reproducing apparatus according to claim 1, wherein the information recording / reproducing apparatus is set lower.   5. The information recording / reproducing apparatus according to claim 1, wherein the information received by the information receiving means is a broadcast radio wave from a broadcasting station.   6. The information recording / reproducing apparatus according to claim 5, wherein transmission information of information substantially the same as the preset information acquired and searched by the information recording compensation means is a broadcast electronic program guide.   7. The information recording / reproducing apparatus according to claim 6, wherein the information recording compensation means acquires the electronic program guide from at least one of the information receiving means and a communication means provided separately from the information receiving means. . Record preset information from the received information on a predetermined recording medium,
Detecting at least one of the information recorded on the recording medium and the information recorded on the recording medium with a reference value set in advance, and detecting a decrease in the quality of the recorded information;
When the deterioration of the quality is detected, the transmission information of the information that is substantially the same as the preset information is acquired and searched, and when it is detected that there is a transmission schedule of the information that is substantially the same, the transmission schedule The information recording method of the information recording / reproducing apparatus, wherein the information recording / reproducing apparatus is configured to make a recording reservation on the recording medium by making a reception reservation of substantially the same information as described above.

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