JP2006148601A - Digital broadcast receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital broadcast receiver capable of solving misrecognition or dissatisfaction of a user with respect to failure in video recording. <P>SOLUTION: Control of video recording/reproduction of a received program for a video recording unit is performed by a CPU. In performing video recording processing, the CPU causes a timer to operate, and measures an elapsed time. Further, the CPU determines video recording error (failure in video recording) during video recording processing. If determining that video recording error occurs or video recording is resumed, the CPU records information of elapsed time of each time point so that the information may be correlated to a video-recorded program (name of program and video recording date/time etc.). When receiving an instruction of reproducing the video recorded program, the CPU performs program reproduction (display) processing, and causes a display unit 36 to display an indicator A. Then, the indicator A is utilized to display a video recording error period (black display). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a digital broadcast receiving apparatus that receives a digital broadcast.

2. Description of the Related Art Conventionally, a digital broadcast receiving apparatus having a function of recording a received digital broadcast program is known. In recent years, a mobile device such as a mobile phone or a mobile device such as a vehicle is provided with a television viewing function and a recording function (see Patent Document 1). Furthermore, terrestrial digital broadcasting (one-segment broadcasting) is scheduled for portable devices or mobile devices.
JP 2003-101921 A

  By the way, when a received program is recorded in a portable device or mobile device that receives terrestrial digital broadcasting, it is expected that a relatively large number of cases cannot be performed due to radio wave interference or the like. For example, in a 15-minute drama recording, there may be a situation in which the last 5 minutes cannot be recorded due to radio interference. In such a case, if the user plays the drama without knowing anything and the last five minutes cannot be played, the user may misunderstand that the recording error is caused by a device failure. Even if it is possible to recognize that recording could not be performed due to radio wave interference or the like, it is expected that the user will be dissatisfied if such information is first known during playback.

  SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a digital broadcast receiving apparatus that can eliminate misunderstanding and dissatisfaction by a user for recording failure.

  In order to solve the above problems, the digital broadcast receiving apparatus of the present invention is a digital broadcast receiving apparatus having a recording function unit for recording a received digital broadcast program, and judges whether a recording error has occurred during recording. Means for storing time information when a recording error occurs, and display means for displaying a recording error period of a recorded program using the time information.

  With the above configuration, since the recording error period of the recorded program is displayed, the user can know that there is a recording error period at the time of playback of the recorded program or prior to playback.

  In the digital broadcast receiving apparatus configured as described above, the display means may be configured to perform graphic display indicating the position and length of the recording error period with respect to the total time of the recorded program. Alternatively, the display means may be configured to use characters or pictograms for displaying the recording error period.

  In the digital broadcast receiving apparatus configured as described above, the time information is preferably time elapsed information from the start of recording.

  Further, the digital broadcast receiving apparatus having these configurations may be configured to display the recording error period together with the playback video display. The display of the recording error period may be configured to be presented as ancillary information of a recorded program when a command for presenting information of the recorded program is received.

  The digital broadcast receiving apparatus having these configurations may be configured as a portable type or a mobile type that receives terrestrial digital broadcasts.

  As described above, according to the present invention, when a recording error occurs, it is possible to indicate to the user the fact that the recording error has occurred and at what point in time, so that the user's dissatisfaction with the recording error can be eased. Play.

  A digital broadcast receiver according to an embodiment of the present invention will be described below with reference to FIGS. Here, a digital terrestrial broadcast receiver configured as a mobile phone with a TV is illustrated.

  FIG. 1 is a block diagram showing a mobile phone 10 with a TV. This mobile cellular phone with TV 10 includes a telephone function unit 30 and a digital broadcast receiving unit 20. The telephone function unit 30 includes a control unit 31, a wireless communication unit 32, a voice processing unit 33, a memory unit 34, a key input unit (operation unit) 35, a display unit (for example, a liquid crystal panel) 36, data And a processing unit 37. The voice signal received in the normal telephone process is given to the speaker 38 via the voice processing unit 33, while the voice uttered by the user is converted into a voice signal by the microphone 39 and subjected to processing such as amplification by the voice processing unit 33. The audio signal is sent out by the wireless communication unit 32. The data processing unit 37 performs processing on the received packet. The wireless communication unit 32 performs voice and data transmission / reception processing and predetermined protocol processing (transmission time processing and reception time processing) with the base station 60. The control unit 31 performs overall control in the telephone function unit 30 and performs processing for cooperation with the digital broadcast receiving unit 20. For example, as a basic process, when the TV function activation key is turned on in the key input unit 35, an ON command is given to the digital broadcast receiving unit 20, and the video output from the digital broadcast receiving unit 20 is displayed on the display unit 36. A process of giving the digital broadcast receiving unit 20 a channel selection command with the number as a channel number when the numeric keypad of the key input unit 35 is operated is performed.

  Next, the digital broadcast receiver 20 will be described with reference to FIG. The terrestrial antenna 1 gives the received signal to the terrestrial digital tuner 2. The terrestrial digital tuner 2 extracts a signal having a specific frequency from the high-frequency digital modulation signal including video / audio data. The terrestrial digital tuner 2 includes a demodulation circuit, a deinterleave circuit, an error correction circuit, etc., and demodulates the selected digital modulation signal to output a transport stream.

  The demultiplexer (DEMUX) 3 converts the transport stream into IEEE H.264. H.264 video stream, audio stream, PSI / SI (Program Specific Information / Service Information), broadcast information (region identifier, service type, broadcast station identification, service number, remote control key ID), etc. The demultiplexer 3 supplies the video stream and the audio stream to the AV decoder 4 and supplies PSI / SI, broadcast information, and the like to the CPU 13.

  The AV decoder 4 includes a video decoder that decodes a video stream and an audio decoder that decodes an audio stream. The video decoder decodes an input encoded signal to obtain a quantization coefficient and a motion vector, and performs inverse DCT transform, motion compensation control based on the motion vector, and the like. The audio decoder decodes the input encoded signal to generate audio data. The video data generated by the decoding is output to the video processing circuit 5, and the audio data is output to the audio processing circuit 6.

  The video processing circuit 5 receives video data from the AV decoder 4 and generates, for example, RGB data. The RGB data is given to the display unit 36 for video display. The audio processing circuit 6 receives the audio data output from the AV decoder 4 and performs D / A conversion to generate, for example, a right (R) sound analog signal and a left (L) sound analog signal. These audio signals are supplied to the speaker 38 or a speaker (not shown) provided separately from the telephone.

  The OSD (On Screen Display) circuit 12 outputs video data based on character information and color information instructed to be output from the CPU 13 to the adder 20. The adder 20 performs processing for incorporating the video data into the received video data output from the AV decoder 4. The OSD circuit 12 can display a menu screen and an indicator described later.

  A memory (for example, RAM, EEPROM, flash memory, etc.) 14 stores a channel table (a channel list in which frequency information, broadcast station name, etc. are associated with remote control key IDs and channel numbers) and the like.

  The CPU 13 exchanges information with the telephone function unit 30 via the external input / output interface 9. Further, the CPU 13 can perform channel search processing by the digital broadcast receiving unit 20 and channel selection processing using the search result (channel table).

  The recording unit 7 can record a video and audio stream of the received digital broadcast program. The recording unit 7 includes a semiconductor memory, a magnetic recording medium, a memory card, and the like. Recording / reproduction control for the recording unit 7 is performed by the CPU 13. When performing the recording process, the CPU 13 operates a timer (not shown) to measure the elapsed time. Further, the CPU 13 determines a recording error (recording failure) during the recording process. For recording errors, the received radio wave is interrupted, the memory capacity of the recording unit 7 is insufficient, the same program continued reception process failure due to regional movement, the digital data obtained by demodulation cannot be corrected, and the decoded data obtained by the AV decoder is recorded. In the case of a configuration in which recording is performed in the unit 7, when the decoding is failed, the tuner is automatically stopped when the remaining battery level is detected and becomes less than a predetermined threshold, the tuner is automatically stopped when the incoming call is received There is a tuner stop when the tuner is stopped.

  When the CPU 13 determines that a recording error has occurred and resumes recording, the CPU 13 records the elapsed time information at each time point in association with the recorded program (program name, recording date, etc.), for example, in the memory 14. Of course, elapsed time information may be recorded in the recording unit 7. Further, the elapsed time information is temporarily recorded in the memory 14, and after the program is recorded in the recording unit 7, the elapsed time information is read from the memory 14 and is recorded in the recording unit 7 as attached information (related information) of the recorded program. It may be recorded. When a recording error occurs, the stream recording process for the recording unit 7 is stopped.

  When the CPU 13 receives an instruction to play a recorded program, the CPU 13 reads the video and audio stream of the recorded program from the recording unit 7 and supplies the stream to the AV decoder 4 to display the video on the display unit 36, as shown in FIG. As shown, for example, the indicator A is displayed by the OSD in the lower side area of the display unit 36. The CPU 13 determines whether elapsed time information is stored in the memory 14 or the like for the recorded program. When the elapsed time information is stored, that is, when there is a recording error period, the indicator A performs a predetermined color (for example, black) filling process from the start position to the end position corresponding to the period. FIG. 3 exemplifies a painting process when a recording error occurs when 17 minutes have elapsed from the start of recording and when recording is resumed when 22 minutes have elapsed. In addition, when the playback process of the recorded program is performed, the CPU 13 performs a bar display process of a predetermined color (same color as the fill color or a different color) in the indicator A according to the playback progress status.

  In this way, when there is a recording error period in recording, the period information is stored and can be notified to the user using the indicator A, so that playback is performed without knowing anything and recording is incomplete. Compared with the case where the user knows, the dissatisfaction of the user is remarkably reduced.

  In the above example, the recording error information is shown to the user by using the indicator A at the time of playback. However, the present invention is not limited to this, and when an item such as “recording information” is specified from the menu screen, one of the recording information is displayed. As an alternative, the recording error information may be displayed (as attached information). The indicator A is used to notify the user of the recording error period. However, the present invention is not limited to this. For example, a text message display such as “recording error: period of 17 minutes to 22 minutes” may be performed. Good. The recording error period may be indicated by a pictogram indicating a recording error and a number. The recording error period is the elapsed time from the start of recording, but time may be used.

  In the above example, a mobile phone with a TV function has been described. However, the mobile phone may be configured as a portable or mobile digital broadcast receiver. Moreover, it is not limited to a portable type or a mobile type, but may be a stationary digital broadcast receiving apparatus. Moreover, it can be configured not only as terrestrial digital broadcasting but also as a receiving device for satellite (CS / BS) digital broadcasting. Note that a recording error is particularly likely to occur in a portable or mobile digital terrestrial broadcast receiver, so that the advantages of the present invention can be further exerted in such a configuration.

It is the block diagram which showed the mobile telephone of embodiment of this invention. It is the block diagram which showed the broadcast receiving part of the mobile telephone of embodiment of this invention. It is the front view which showed the external appearance and display content of the mobile telephone of embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mobile phone 20 Digital broadcast receiving part 30 Telephone function part 31 Control part 32 Wireless communication part

Claims (7)

In a digital broadcast receiving apparatus having a recording function unit for recording a received digital broadcast program, a determination means for determining whether a recording error has occurred during recording, and a memory for storing time information when the recording error has occurred And a display means for displaying a recording error period of the recorded program using the time information. 2. The digital broadcast receiving apparatus according to claim 1, wherein the display means performs graphic display indicating a position and a length of the recording error period with respect to the entire time of the recorded program. 2. The digital broadcast receiving apparatus according to claim 1, wherein the display means uses characters or pictograms for displaying the recording error period. 4. The digital broadcast receiving apparatus according to claim 1, wherein the time information is elapsed time information from the start of recording. 5. The digital broadcast receiving apparatus according to claim 1, wherein the recording error period is displayed together with a reproduced video display. 6. The digital broadcast receiving apparatus according to claim 1, wherein the display of the recording error period is presented as ancillary information of the recorded program when receiving an instruction to present information of the recorded program. A digital broadcast receiver characterized by being configured. 7. The digital broadcast receiving apparatus according to claim 1, wherein the digital broadcast receiving apparatus is configured as a portable type or a mobile type that receives terrestrial digital broadcasts.

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