JP2009088630A - Signal reproducing apparatus and recording / reproducing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a user to operate a television set to easily display and search a program recorded with an external recorder by operating the television set, and to enable the user to start view of a video-recorded program without performing complicated operation, more specifically, to store a video recording history into a TV when operating a recorder connected via HDMI (high-definition multimedia interface) by using DTV to video-record the program, thereby performing reproduction control from the history. <P>SOLUTION: The DTV has a memory and records the information of a recorded program when the DTV controls the recorder by using HDMI-CEC (HDMI-consumer electronics control) to start video recording. In reproducing, the information of recorded programs is displayed on a list, and a reproduction command of a selected program is transmitted to the recorder to reproduce the program. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an apparatus for recording and reproducing data such as video and audio.

  In recent years, the HDMI (High-Definition Multimedia Interface) standard for transmitting digital video and audio data has become widespread. (Non-Patent Document 1). HDMI is used to connect a display device such as a digital television and a video / audio output device such as a digital recorder, and can transmit high-quality digital video and audio. In addition, the HDMI standard standardizes device control signals called CEC (Consumer Electronics Control) and control protocols, allowing not only video and audio transmission, but also control of devices connected by HDMI cables. is there. Control commands are defined in CEC, and by combining the defined control commands, the same program as the program being viewed on the TV is tuned to start the recording by tuning the tuner of the hard disk recorder connected via HDMI. Control is possible.

As another conventional example, Patent Document 1 can be cited.
JP 2006-67540 A High-Definition Multimedia Interface Specification Version 1.3a

  Even if the TV remote control is operated and the program being viewed on the TV is recorded on the hard disk recorder as described above, the recorded program must be selected from the recorded program list displayed by the hard disk recorder. There is a problem in that the operation becomes complicated because it is necessary to search from a list including programs recorded by operating the hard disk and programs recorded by reservation.

  In order to solve the above-mentioned problems, the present invention is a signal reproducing apparatus having an interface capable of transmitting a video signal, an audio signal, and a control signal, and capable of controlling a recording / reproducing apparatus connected via the interface. A function for recording the recorded program information relating to the program, a function for displaying the recorded program information, and the at least one recorded program displayed when the recording / playback apparatus is instructed to record the program. A function of selecting specific recorded program information from the information, and instructing reproduction of the recorded data recorded in the recording / reproducing apparatus according to the selected recorded program information.

  Further, the present invention is characterized in that the recorded program information is recorded only when the recording / playback apparatus is instructed to record the currently viewed program.

  Further, the present invention is characterized in that only the recorded program information recorded when the recording / playback apparatus is instructed to record the currently viewed program is displayed.

  Further, the present invention is characterized in that, when the selected recorded program cannot be reproduced, the selected recorded program information is erased from the recorded recorded program information.

  Further, the present invention provides a recorded program corresponding to the erasure notification data from the recorded program information when the erasure notification data indicating that the data recorded by the recording instruction is erased is received from the recording / playback apparatus. It is characterized by erasing information.

  Furthermore, the present invention is characterized in that the recorded program information is not displayed when the recording / reproducing apparatus that has performed the recording control cannot be detected.

  Further, the present invention is characterized in that the recorded program information is displayed in an unselectable state when the recording / playback apparatus that has performed the recording control cannot be detected.

  According to the present invention, when the recording control is performed, identification information of recording data is received from the recording / playback apparatus and recorded as a part of the recorded program information.

  According to the present invention, when the reproduction of the recorded data recorded in the recording / reproducing apparatus is instructed according to the selected recorded program information, the reproduction of the recorded data is instructed using the identification information of the recorded data. It is characterized by that.

  Further, the present invention is a recording / playback apparatus having an interface capable of transmitting a video signal, an audio signal, and a control signal, and controllable from an external apparatus connected via the interface, the instruction from the external apparatus When recording is started by the above, identification information of recorded data is transmitted to the external device.

  Further, the present invention is characterized in that the recording data identification information is received from the external device, and the recording data corresponding to the received identification information is reproduced.

  Further, the invention is characterized in that the recording data identification information is a file path of the recording data.

  Further, the invention is characterized in that the identification information of the recording data is a recording start date and time of the recording data.

  Further, the invention is characterized in that the identification information of the recorded data is a program name of the recorded data.

  In the present invention, when recording is started by an instruction from the external device, the recording data records information indicating that recording has started by control from the external device.

  Further, the present invention is characterized in that, when erasing recorded data, if the recorded data to be erased is data recorded according to an instruction from the external device, erasure notification data is transmitted to the external device. To do.

  A program recorded by an external recorder by operating the television can be easily displayed and searched by operating the television, and viewing of the recorded program can be started without performing a complicated operation.

  Next, details of the present invention will be described in accordance with the description of the embodiments.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

  [FIG. 1] is a system in which the digital television and the digital recorder in this embodiment are connected. 11 is a digital TV, 12 is a digital recorder, and 13 is an HDMI cable connecting the digital TV 11 and the digital recorder 12.

  First, a block diagram and general operation of the digital television 11 will be described.

  Reference numeral 1101 denotes a CPU for controlling the digital television, and reference numeral 1102 denotes a digital signal processor for processing digital video / audio data. 1103 is an antenna unit, and 1104 is a digital tuner unit. Reference numeral 1105 denotes a display unit such as a liquid crystal panel, and 1106 denotes a speaker. Reference numeral 1107 denotes a receiving unit of the infrared remote controller. Reference numeral 1108 denotes an HDMI circuit, and 1109 denotes an HDMI terminal. Reference numeral 1110 denotes a memory for storing recording history data.

  When viewing broadcast waves on a digital television, a signal received from the antenna 1103 is demodulated by the tuner 1104 and input to the DSP 1102 as digital data. The DSP 1102 decodes the digital data, reproduces the video data and audio data, and outputs them to the display unit 1105 and the speaker 1106, respectively, to display video and output audio.

  When displaying the playback video of the digital recorder connected via HDMI, the video / audio data is received from the digital recorder 12 via the HDMI cable 13 connected to the HDMI terminal 1109 by the HDMI circuit 1108. The received video. Audio data is input to the DSP 1102, and the DSP 1102 processes the input video / audio data and outputs them to the display unit 1105 and the speaker 1106, respectively, to display video and output audio.

  Next, a block diagram and a general operation of the digital recorder 12 will be described.

  1201 is a CPU for controlling the digital recorder, and 1202 is a digital signal processor for processing digital video / audio data. 1203 is an antenna unit, and 1204 is a digital tuner unit. Reference numeral 1205 denotes an HDD (hard disk drive) for storing recorded data. Reference numeral 1206 denotes a receiving unit of the infrared remote controller. Reference numeral 1207 denotes an HDMI circuit, and 1208 denotes an HDMI terminal.

  When recording a broadcast wave with a digital recorder, the signal received from the antenna 1203 is demodulated by the tuner 1204 and input to the DSP 1202 as digital stream data such as MPEG2. The CPU 1201 controls the HDD 1205 to record the digital stream data on the HDD 1205 and record a management file of the recorded data on the HDD 1205.

  When playing back recorded data with a digital recorder, the CPU 1201 first controls the DSP 1202 to create a recorded data list screen, and the list screen is input to the HDMI circuit 1207. The list screen input to the HDMI circuit 1207 is output from the HDMI terminal 1208 and displayed on the digital television 11 connected by the HDMI cable 13. The user operates a remote control for a digital recorder (not shown), and selects a recorded program to be played while viewing the previous term list screen. A control signal generated by the operation of the remote controller is input to the CPU 1201 via the remote controller receiving unit 1206, and the CPU 1021 reads a file corresponding to the selected recording data from the HDD 1205 and inputs the file to the DSP 1202. The DSP 1202 decodes the data of the input file, reproduces the video data and audio data, and inputs them to the HDMI circuit 1207. The video / audio data input to the HDMI circuit 1207 is output from the HDMI terminal 1208 and displayed / reproduced on the digital television 11 connected by the HDMI cable 13.

  Next, the operation when the program being viewed is recorded on the digital recorder 12 by operating the digital television 11 will be described with reference to FIG.

  In step 201, when the user operates a digital TV remote control (not shown in FIG. 1) and presses the “One Touch Record” button, the CPU 1101 of the digital TV 11 detects the remote control code received via the remote control receiver 1107. To do. Upon detecting the remote control code, the CPU 1101 creates a <Record On> command frame in which the stream information of the currently received program is set, and inputs it to the HDMI circuit 1108. In step 202, the HDMI circuit 1108 transmits the command frame to the digital recorder 12 connected by the HDMI cable 13 via the HDMI terminal 1109.

  The CPU 1201 of the digital recorder 12 detects the received <Record On> command via the HDMI circuit 1207. According to the stream information set in the parameter of the <Record On> command, the CPU 1201 controls the tuner 1204 to tune the program to be recorded, and starts recording the program on the HDD 1205. When recording starts, the CPU 1201 creates a <Record Status> command frame in which the stream information of the program being recorded is set, and inputs it to the HDMI circuit 1207. In step 203, the HDMI circuit 1207 transmits the command frame to the digital television 11 connected by the HDMI cable 13 via the HDMI terminal 1208. Further, the CPU 1201 creates a <Vendor Command> command frame in which the identification information of the program data being recorded is set, and inputs it to the HDMI circuit 1207. In step 204, the HDMI circuit 1207 transmits the command frame to the digital television 11 connected by the HDMI cable 13 via the HDMI terminal 1208. As the identification information, a file path of a file recorded in the HDD 1205, recording start date / time information, a program name of a recorded program acquired from an EPG (Electronic Program Guide), or the like can be used.

  In step 204, the CPU 1101 of the digital television 11 that has received the <Vendor Command> command frame detects identification information from the command frame, and records information of the program that has started recording in the memory 1110. FIG. 3 is a diagram showing an example of data recorded in the memory 1110. Using the program name, broadcast station, recording start date and time, and identification information as one record, the remote control of the digital television 11 is operated to record the recorded program on the digital recorder 12.

  In step 205, when the user operates a digital TV remote control (not shown in FIG. 1) and presses the “Record Stop” button, the CPU 1101 of the digital TV 11 detects the remote control code received via the remote control receiver 1107. . Upon detecting the remote control code, the CPU 1101 creates a <Record Off> command frame and inputs it to the HDMI circuit 1108. In step 206, the HDMI circuit 1108 transmits the command frame to the digital recorder 12 connected by the HDMI cable 13 via the HDMI terminal 1109. The CPU 1201 of the digital recorder 12 detects the received <Record Off> command via the HDMI circuit 1207 and ends the recording process.

  [Fig. 2] shows an example in which the recording is stopped by the user's remote control operation, but the broadcast end time of the program to be recorded is detected from the EPG information, and the digital television 11 automatically digitalizes at the broadcast end time. It is also possible to send a <Record Off> command frame to the recorder 12 to end the recording, or the digital recorder can automatically end the recording at the recording end time.

  Next, an operation when the recorded program is reproduced by operating the digital television 11 will be described.

  When the user operates the remote control of the digital television 11 (not shown in FIG. 1) and presses the “recorded program list” button, the CPU 1101 of the digital television 11 detects the remote control code received via the remote control receiver 1107. Upon detecting the remote control code, the CPU 1101 reads the recorded program information from the memory 1110, controls the DSP 1202 to create a recorded program list screen, and displays it on the display unit 1105. [FIG. 4] is an example of a recorded program list screen displayed on the display unit. When the digital recorder 12 is not detected because the cable 13 is not connected to the HDMI terminal or the like, the recorded program list screen is not displayed, or the program is displayed in a state where the program cannot be selected from the list.

  When the digital recorder 12 is connected to the digital television 11, the user operates the cross button on the remote controller to select the program to be reproduced from the recorded program list, and then in step 501 of FIG. Press the “Play” button on the remote control. The CPU 1101 of the digital television 11 detects the remote control code received via the remote control receiving unit 1107. Upon detecting the remote control code, the CPU 1101 creates a <Vendor Command> command frame for selecting a playback program in which identification information corresponding to the selected program information is set as a parameter, and inputs it to the HDMI circuit 1108. In step 502, the HDMI circuit 1108 transmits the command frame to the digital recorder 12 connected by the HDMI cable 13 via the HDMI terminal 1109.

  The CPU 1201 of the digital recorder 12 detects the received <Vendor Command> command via the HDMI circuit 1207. In accordance with the identification information set in the parameter of the <Vendor Command> command, the CPU 1201 selects a file corresponding to the detected identification information from the HDD 1205 as a reproduction file. When the file can be reproduced from the HDD 1205, the CPU 1201 creates a <Vendor Command> command frame in which the identification information of the selected file is set, and inputs it to the HDMI circuit 1207. In step 503, the HDMI circuit 1207 transmits the command frame to the digital television 11 connected by the HDMI cable 13 via the HDMI terminal 1208.

  The CPU 1101 of the digital television 11 that has received the <Vendor Command> command frame in step 503 detects the identification information from the command frame, and confirms that the file corresponding to the identification information transmitted in step 502 has been selected. The CPU 1101 creates a <Play> command frame instructing the start of reproduction and inputs it to the HDMI circuit 1108. In step 504, the HDMI circuit 1108 transmits the command frame to the digital recorder 12 connected by the HDMI cable 13 via the HDMI terminal 1109.

  The CPU 1201 of the digital recorder 12 detects the received <Play> command via the HDMI circuit 1207, starts playing the selected file, and the digital TV 11 plays the digital recorder 12 input from the HDMI terminal. Display and output images and sound.

  [FIG. 6] is a diagram showing processing when the selected recorded program cannot be reproduced. Steps in FIG. 6 having the same numbers as those in FIG. 5 are the same as those in FIG. 5 and will not be described.

  If the file corresponding to the identification information received in step 502 cannot be played back because it has already been deleted from the HDD 1205 or the like, the CPU 1201 of the digital recorder 12 indicates a file selection failure <Feature Abort> command. A frame is created and input to the HDMI circuit 1207. In step 603, the HDMI circuit 1207 transmits the command frame to the digital television 11 connected by the HDMI cable 13 via the HDMI terminal 1208.

  The CPU 1101 of the digital television 11 that has received the <Feature Abort> command frame in step 603 detects that the program cannot be played back, and controls the DSP 1202 to notify that the playback of the recorded program has failed. A screen is created and displayed on the display unit 1105, and the selected program information is deleted from the program information recorded in the memory 1110.

  Next, the operation of the second embodiment will be described.

  The command flow for recording control in the second embodiment is the same as that in the first embodiment, and the content is as shown in FIG. However, the operation of the digital recorder 12 when the <Record On> command frame is received in step 202 is different.

  When the <Record On> command is received and the recording of the program is started on the HDD 1205 according to the procedure described in the first embodiment, the recording data is recorded by the command from the digital television 12 in the recording data management file. The data indicating is recorded. The subsequent processing is the same as the processing content described in the first embodiment.

  Since the reproducing operation is the same as that of the first embodiment, the description thereof is omitted.

  Next, an operation when the recorded program is erased by operating the digital recorder 12 will be described. [FIG. 7] is a diagram showing processing when a recorded program is deleted.

  When the remote control of the digital recorder 12 (not shown in FIG. 1) is operated to display the recorded program list and the user deletes the recorded program by pressing the “Delete” button on the remote control in step 701, the CPU 1201 is deleted. The management information of the recorded program is read, and it is confirmed whether or not the program is recorded by a command from the digital television 12. If the recorded program is a program recorded by a command from the digital television 12, the CPU 1201 creates a <Vendor Command> command frame for notifying recording deletion in which the identification information of the program to be deleted is set, and an HDMI circuit 1207 To enter. In step 702, the HDMI circuit 1207 transmits the command frame to the digital television 11 connected by the HDMI cable 13 via the HDMI terminal 1208.

  In step 702, the CPU 1101 of the digital television 11 that has received the <Vendor Command> command frame detects that the program has been deleted, and deletes the program information corresponding to the identification information detected from the command frame from the memory 1110.

[Industrial applicability]
According to the present embodiment, recording and playback operations can be performed only by operating the television, and a user interface that is comfortable to display and operate can be provided to the user.

The block diagram of the system in this invention. FIG. 6 is a diagram illustrating a recording control process in the first embodiment. FIG. 3 is a diagram illustrating an example of recorded program information in the first embodiment. The figure which shows the example of the recorded program list screen in Example 1. FIG. 6 is a diagram showing a playback control process in the first embodiment. FIG. 6 is a diagram illustrating a control process when reproduction fails in the first embodiment. The figure which shows the control processing at the time of the recorded program deletion in Example 2. FIG.

Explanation of symbols

11 Digital TV
12 Digital recorder
13 HDMI cable
1101 CPU
1102 Digital signal processor
1103 Antenna section
1104 Digital tuner section
1105 Display
1106 Speaker
1107 Infrared remote control receiver
1108 HDMI circuit
1109 HDMI terminal
1110 Memory
1201 CPU
1202 Digital signal processor
1203 Antenna section
1204 Digital tuner section
1205 HDD
1206 Infrared remote control receiver
1207 HDMI circuit
1208 HDMI terminal

Claims (18)

  A signal playback device having an interface capable of transmitting a video signal, an audio signal, and a control signal, and capable of controlling a recording / playback device connected via the interface, and recording a program to the recording / playback device. A function of recording recorded program information relating to the program, a function of displaying the recorded program information, and a function of selecting specific recorded program information from the displayed at least one recorded program information And instructing reproduction of the recorded data recorded in the recording / reproducing apparatus according to the selected recorded program information.   2. The signal reproducing apparatus according to claim 1, wherein the signal reproducing apparatus has a function of recording the recorded program information when the recording / reproducing apparatus is instructed to record a program currently being viewed.   2. The signal reproducing apparatus according to claim 1, wherein the recorded program information recorded when the recording / reproducing apparatus is instructed to record the currently viewed program is displayed.   2. The signal reproducing apparatus according to claim 1, wherein when the selected recorded program cannot be reproduced, the selected recorded program information is deleted from the recorded recorded program information.   When erasure notification data indicating that the data recorded by the recording instruction is erased is received from the recording / playback apparatus, the recorded program information corresponding to the erasure notification data is erased from the recorded program information. The signal reproducing apparatus according to claim 1, wherein:   2. The signal reproducing apparatus according to claim 1, wherein when the recording / reproducing apparatus that has performed the recording control cannot be detected, the recorded program information is not displayed.   2. The signal reproducing apparatus according to claim 1, wherein when the recording / reproducing apparatus that has performed the recording control cannot be detected, the recorded program information is displayed in an unselectable state.   2. The signal reproducing apparatus according to claim 1, wherein when the recording control is performed, identification information of recording data is received from the recording / reproducing apparatus and recorded as a part of the recorded program information.   According to the selected recorded program information, when instructing the reproduction of the recorded data recorded in the recording / reproducing apparatus, the reproduction of the recorded data is instructed using the identification information of the recorded data. The signal reproducing apparatus according to claim 8.   The signal reproducing apparatus according to claim 1, wherein the interface is HDMI.   A recording / playback apparatus having an interface capable of transmitting a video signal, an audio signal, and a control signal, and controllable from an external device connected via the interface, wherein recording is started by an instruction from the external device In this case, the recording / playback apparatus transmits the identification information of the recording data to the external apparatus.   12. The recording / playback apparatus according to claim 11, wherein identification information of the recording data is received from the external device, and the recording data corresponding to the received identification information is played back.   12. The recording / reproducing apparatus according to claim 11, wherein the identification information of the recording data is a file path of the recording data.   12. The recording / reproducing apparatus according to claim 11, wherein the identification information of the recording data is a recording start date and time of the recording data.   12. The recording / reproducing apparatus according to claim 11, wherein the identification information of the recording data is a program name of the recording data.   12. The recording / reproducing apparatus according to claim 11, wherein when recording starts according to an instruction from the external apparatus, the recording data records information indicating that recording has started under control from the external apparatus.   The deletion notification data is transmitted to the external device when the recorded data is deleted when the recorded data to be deleted is data recorded according to an instruction from the external device. The recording / reproducing apparatus as described.   The recording / playback apparatus according to claim 11, wherein the interface is HDMI.

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