WO2000013326A1 - Recepteur de donnees de type a memoire - Google Patents
Recepteur de donnees de type a memoire Download PDFInfo
- Publication number
- WO2000013326A1 WO2000013326A1 PCT/JP1999/004510 JP9904510W WO0013326A1 WO 2000013326 A1 WO2000013326 A1 WO 2000013326A1 JP 9904510 W JP9904510 W JP 9904510W WO 0013326 A1 WO0013326 A1 WO 0013326A1
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- WO
- WIPO (PCT)
- Prior art keywords
- data
- storage
- next update
- update information
- receiving
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
- H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
- H04N7/0887—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of programme or channel identifying signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/25—Arrangements for updating broadcast information or broadcast-related information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4348—Demultiplexing of additional data and video streams
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4436—Power management, e.g. shutting down unused components of the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/458—Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
- H04N21/4586—Content update operation triggered locally, e.g. by comparing the version of software modules in a DVB carousel to the version stored locally
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
Definitions
- the present invention relates to a storage type used for a broadcast type data distribution service such as a teletext broadcast or a data broadcast or a communication type overnight distribution service such as the Internet.
- a broadcast type data distribution service such as a teletext broadcast or a data broadcast or a communication type overnight distribution service such as the Internet.
- a computer or the like implements a data reception method executed by the storage-type data reception device and a method of updating the stored data using a computer or the like.
- the present invention relates to a recording medium on which is stored a program for receiving data from a computer. Background art
- VBI vertical flyback period
- EPG Electronic Program Guide
- FIG. 10 shows a configuration of a conventional storage-type data receiving device used for a broadcast-type data distribution service.
- the conventional storage-type data receiver Arc includes a tuner 101, a data extractor 103, a data decoder 105, a data storage 107, and so on. Includes display device 109.
- the tuner 101 converts the broadcast wave S rf received by the antenna (not shown) into a down-converter based on the frequency of the broadcast channel selected by the user. And generates the video signal S v by demodulation.
- the data extractor 103 extracts predetermined data De included in the video signal SV output from the tuner 101 and outputs the extracted data De.
- the data storage device 107 stores the data De output from the data extraction device 103. Further, the data storage unit 107 stores the stored data De in accordance with the read request signal Sr input from the data decoder 105. Output to the decoder coder 105.
- the nighttime decoder 105 decodes the nighttime data De output from the nighttime extractor 103 or the nighttime accumulator 107. And generate the decrypted data D d.
- the data presenter 109 is provided with a display device such as a display, for example, and the decryption data D d output from the decoder 105 is D d. Present the contents of
- the storage unit 107 is configured using a device that degrades depending on the number of writes, such as a hard disk or non-volatile memory, it is always up-to-date. The same data is written more than twice as many times as necessary to accumulate the same data. There is a problem that the life of the storage unit 107 is shortened due to the unnecessary duplicate writing.
- the tuner 101, the data extractor 103, and the data decoder 105 are required. It is necessary to always supply power to all of the data storage device 107 and the data presentation device 109 so that the entire data reception device Arc is always operated. .
- a first object of the present invention is to provide a storage-type data receiving apparatus and a storage-type data receiving method for minimizing the number of times of writing data necessary to keep stored data up to date.
- Another object of the present invention is to provide a recording medium on which a storage-type data reception processing program is recorded.
- a second object of the present invention is to set the tuner to a corresponding channel at all times.
- a storage-type data receiver and storage-type device that can always store the latest data without having to set the number of cells, and while minimizing the number of times data is written.
- An object of the present invention is to provide a recording medium on which a data receiving method and a storage-type data receiving processing program are recorded.
- a third object of the present invention is to always supply the latest data without minimizing the number of times of data writing without constantly supplying power to the parts required for data reception.
- Data storage device capable of storing data, a storage medium storing a storage data reception method and a storage medium storing a storage data reception processing program. is there . Disclosure of invention
- a first aspect of the present invention is to receive data that is irregularly updated from a data source and receive next update information indicating the next update of the data, and accumulate the data.
- This is a storage-type data receiving device.
- a storage device for storing data
- a data update detector for comparing the current time with the next update time indicated by the stored next update information, and generating a data update time display signal indicating whether or not the data is updated;
- the data in the storage And a storage controller for controlling the storage of data.
- data can be stored only when the stored data is updated.
- the data accumulation controller stores the received data in the accumulator when the current time matches the next update information. It is characterized in that it is controlled so that As described above, in the second phase, since data is accumulated only when the accumulated data is updated, the accumulated data is updated with the same data. Can be prevented.
- the receiver selects a signal of an arbitrary broadcast channel selected from signals of a plurality of broadcast channels.
- a channel controller for controlling the switching of the channel of the channel device based on the data update display signal is further provided.
- the tuner controller selects an arbitrary tuner device when the current time matches the next update information. It is characterized in that it is controlled so as to be synchronized with the channels of the above.
- the stored data can be used for receiving other data except when the stored data is updated with a new data.
- a power supply controller for controlling supply of power to the receiver based on the data update display signal is further provided.
- the power supply controller supplies power to the receiver only when the current time matches the next update information. .
- the power supply to the receiver is cut off except when the stored data is updated with new data. Unnecessary consumption of power can be prevented.
- the power supply controller supplies power to the data update detector irrespective of the data update display signal.
- data stored with minimal power consumption can be updated with new data.
- the storage data identification information for generating identification information for specifying the data to be stored is provided. Reporter and,
- the channel controller tunes the channel of the channel device to the broadcast channel for distributing the stored data.
- any data among data distributed from a plurality of data sources can be selectively accumulated.
- the specific data extraction for extracting the specified data to be stored from the received data based on the identification information.
- An output device is further provided.
- data received from a data source updated at an irregular period and next update information indicating the next update of the data are received, and the data is received. This is a storage-type data reception method for storing
- An update time determination step for comparing the current time with the next update time indicated by the stored next update information to determine whether or not the data is to be updated;
- the eleventh aspect of the present invention relates to the tenth aspect, wherein The evening accumulation control step is characterized in that the accumulation step is enabled only when the current time matches the next update information.
- the receiving step comprises:
- a tuning control step for enabling the tuning step is further provided.
- a device comprising a computer program and a computer is described in claim 10. This is a computer program that can execute computer overnight so that it can execute the storage-type overnight reception method.
- the computer is read over the night, so that the computer is capable of storing data. This is a computer program that can execute the data reception method.
- the computer is read at a computer evening, so that the computer is of a storage type.
- a computer readable medium is provided with a computer code means capable of executing the data reception method.
- FIG. 1 is a block diagram showing the configuration of the data receiving device according to the first embodiment of the present invention.
- FIG. 2 is a block diagram showing an example of a specific configuration of the reception data processing controller 40 shown in FIG.
- FIG. 3 is a flowchart showing the operation of the data receiving apparatus shown in FIG.
- FIG. 4 is a block diagram showing a configuration of a data receiving device according to the second embodiment of the present invention.
- FIG. 5 is a flowchart showing the operation of the data receiving apparatus shown in FIG.
- FIG. 6 is a block diagram showing a configuration of the data receiving device according to the third embodiment of the present invention.
- FIG. 7 is a flow chart showing the operation of the data receiving apparatus shown in FIG.
- FIG. 8 is a block diagram showing a configuration of a data receiving device according to the fourth embodiment of the present invention.
- FIG. 9 is a flowchart showing the operation of the data receiving device shown in FIG.
- FIG. 10 is a block diagram showing a configuration of a conventional data receiving device.
- BEST MODE FOR CARRYING OUT THE INVENTION In order to explain the present invention in more detail, the accompanying drawings are set forth in the accompanying drawings. I will explain this.
- the storage type data receiving apparatus according to the first embodiment of the present invention will be described with reference to FIGS. 1, 2 and 3 and FIGS. 4 and 5.
- FIG. 6 and 7 the storage type data receiving apparatus according to the third embodiment.
- the storage-type data receiving device according to the fourth embodiment will be described in detail with reference to FIGS. 8 and 9.
- FIG. 8 and 9 FIG.
- this embodiment is suitable for an environment in which accumulated data is distributed from a single data source at a predetermined time.
- the storage-type data receiving device Ar 1 includes a tuner 1, a data extractor 3, a data decoder 5, a next update information extractor 7, and next update information. It includes a memory 9, a comparator 11, a storage controller 13, a clock 15, a data storage 17, a data display 19, and a power supply 21.
- the channel 1 demodulates the broadcast wave S rf obtained by receiving by the antenna (not shown) based on the frequency of the broadcast channel selected by the user. Generate the video signal SV.
- the data extractor 3 extracts the data De included in the video signal SV input from the tuner 1 and outputs it.
- the data decoder 5 decodes (interprets) the data De input from the data extractor 3 and outputs the decoded data Dd.
- the data presenter 19 is composed of, for example, a display device such as a display device or a printing device such as a printer, and decodes data inputted from the data decoder 5.
- the next update information storage 9 stores the next update information Inu input from the next update information extractor 7.
- the clock 15 outputs current date and time information Ict indicating the current date and time.
- the comparator 11 compares the current date / time information I ct input from the clock 15 with the next update information I nu stored in the next update information storage 9 to determine a comparison result.
- the data accumulator 17 for outputting the signal S j is composed of a recording medium such as a hard disk and a non-volatile memory, for example.
- the decrypted data Dd output from D is stored.
- the storage controller 13 is a storage control signal for controlling the data storage and reading operation of the data storage 17 based on the determination signal Sj output from the comparator 11. It generates Sc and outputs it to the data storage 17. That is, on the basis of the accumulation control signal Sc, the accumulation controller 13 accumulates the decoded data Dd output from the decoder 5 and stores the decoded data Dd.
- the decrypted data D d is read out to the presenter 19.
- the power supply 21 is a device for supplying power to each of the components of the storage-type data receiver Arp1. The user turns on / off the power supply 21 to start / stop the operation of the storage type data receiver Arp1.
- the tuner 1, the data extractor 5, and the data decoder 5 constitute a source of data to be stored; the next update information extractor 7, the clock 15 and the comparator 11 detect the update time of the data to be accumulated;
- the storage controller 13 and the storage device 17 store and read data.
- the processing controller 40 is constituted. This reception data processing controller 40 is preferably realized by software.
- FIG. 2 illustrates an example of a specific hardware configuration of the reception data processing controller 40 described above.
- the reception data processing controller 40 includes a CPU 40A, a ROM 40B, and a RAM 40C.
- the ROM 40B stores a data reception processing program for controlling the entire operation of the reception data processing controller 40.
- the CPU 40A executes the data processing program stored in R0M40B on the RAM40C.
- the data decoder 5, the next update information extraction device 7, the next update information storage device 9, the comparator 11, the comparator 11, and the storage device constituting the reception data processing controller 40 are obtained.
- the respective functions of the controllers 13 are realized.
- the CPU 40A stores the data in the ROM 4 based on the data De output from the data extractor 3 and the clock 15 and the current date / time information Ict, respectively.
- the decoding data Dd and the accumulation control signal Sc are generated.
- reception data processing controller 40 of the storage type data reception device Arp 1 will be described with reference to the flowchart shown in FIG.
- the user specifies in advance the tuner 1 out of the transmission waves Srf received by the antenna.
- the broadcast signal of the selected channel frequency is selected, and the video signal S v included in the broadcast signal is output to the data extractor 3.
- the data extractor 3 extracts data De from the video signal Sv.
- the data decoder 5 decodes the data De to generate decrypted data Dd.
- the data decoder 5 outputs the generated decrypted data D d to both the next update information extractor 7 and the data presenter 19.
- the data presenter 19 presents the contents of the decrypted data D d.
- step S 10 the accumulation controller 13 generates an accumulation control signal Sc, and decodes the decoded data D output from the decoder 5. d is stored in the storage device 17 overnight. Then, the process proceeds to the next step S20.
- step S20 the next update information extractor 7
- the next update information Inu is extracted from the decryption data Dd output from the evening decoder 5.
- the extracted next update information Inu is stored in the next update information storage 9. Then, the process proceeds to the next step S30.
- step S30 the comparator 11 reads the next update information Inu stored in the next update information storage device 9. Then, the process proceeds to the next step S40.
- step S40 comparator 11 reads current date / time information Ict from clock 15 input. Then, the process proceeds to the next step S50.
- step S50 the current time T (ict) indicated by the current date / time information I ct read in step S40 and the read in step S30 are read out. It is determined whether or not the update time T (inu) indicated by the next update information I nu indicated matches.
- step S60 the accumulation controller 13 generates an accumulation control signal Sc, and outputs the data accumulator 17 from the decoder 5 to the data accumulator 17 overnight. Control to accumulate the decrypted data Dd. That is, at the next update time T (inu), the old decryption data Dd stored in the data storage unit 17 is output from the data decoder 5 at that time. It is updated with new decrypted data Dd. The accumulation of the decryption data D d, that is, Completion of the recording in the data storage 17 is performed, for example, by confirming the decryption end of the decryption data Dd. Then, the process proceeds to the next step S70.
- step S70 the next update information Inu extracted from the decrypted data D d by the next update information extractor 7 is stored in the next update information storage 9. It is done. That is, following the next update time T (inu), the old next update information Inu recorded in the next update information storage unit 9 is output from the next update information extractor 7 at the present time. Will be updated with the new next update information I nu that will be entered. It should be noted that the new next update information Inu accumulated in this step is obtained by updating the content of the decrypted data Dd recorded in step S60 described above. It indicates the time when
- step S30 the process returns to the above-described step S30. Thereafter, the processing of steps S 30, S 40, S 50, S 60, and S 70 is repeated, and the decryption data D d is decoded by the next update information Inu. At each next update time T (i ⁇ ⁇ ) at which the contents are updated, the decryption data D d stored in the data storage unit 17 is replaced with the new decryption data D d. Will be updated.
- step S60 the old decryption data Dd stored in the data storage 17 is updated with the new decryption data Dd.
- the new decryption data Dd may be stored in addition to the old decryption data Dd.
- step S70 instead of updating the old next update information Inu with the new next update information Inu, the new next update information Inu is replaced with the old next update information Inu.
- the content of the decryption data Dd supplied from a single data source is updated. Only when this is done, the decryption data Dd stored in the data storage 17 is updated by the new decryption data Dd.
- the number of times of data writing to the data storage 17 can be minimized. That is, it is possible to always store the latest data while suppressing the deterioration of the data storage 17.
- the present embodiment is suitable for an environment in which accumulated data is distributed from one of a plurality of data sources at a predetermined time.
- the storage-type data receiver Arp2 in this embodiment connects the comparator 11 and the tuner 1 of the storage-type data receiver Arpl shown in FIG. As described above, a tuner controller 23 is newly provided. Further, the data reception processing program stored in R ⁇ M40B is slightly different from that of the storage type data reception device Arp1.
- the tuner controller 23 based on the judgment signal S j inputted from the comparator 11, tunes the broadcast channel frequency to tune out of the received broadcast wave S rf.
- the channel signal St is output to the tuner 1.
- the tuner 1 outputs the video signal SV of the broadcast wave of the predetermined channel from the broadcast wave S rf to the data extractor 3 based on the tuning channel signal St. Strengthen.
- step S4 is newly provided, and step S54 is newly provided between steps S50 and S60. Therefore, the operation in these new steps S4 and S54 will be mainly described.
- step S4 the user indicates to the tuner controller 23 the channel desired to be received.
- the channel controller 23 stores the channel indicated by the user, generates the tuning channel signal St indicating the channel, and tunes the channel. Output to one.
- the tuner 1 tunes to the broadcast wave of the channel specified by the user based on the tuning channel signal St.
- the channel 1 data-extracts the video signal Sv broadcast on the channel desired by the user from the broadcast wave Srf received by the antenna. Output to container 3.
- step S50 when it reaches Y es, that is, at the next update time T (inu), the comparator 11 sends the judgment signal Sj to the accumulation controller 13 and Output to both of the tuner controllers 23. Then, the process proceeds to the next step S54.
- step S54 the tuner control unit 12 outputs the tuning channel signal St to the tuner 1 in response to the determination signal Sj. .
- the channel 1 is controlled by the tuning channel signal St so as to tune to the channel designated by the user in step S4.
- the decryption data Dd included in the video signal SV distributed on the broadcast channel desired by the user is output from five data decoders. Then, the processing in steps S60, S70, S30, S40, and S50 described above is repeated, and the next time of data De is repeated. Prepare for updating.
- the storage type data receiver Arp2 of the present embodiment when the data distributed from any one of the plurality of data sources is updated.
- the decryption data Dd stored in the data accumulator 17 in synchronization with the broadcast channel, which is the de-source of the corresponding tuner 1 is the latest one. Will be updated at
- the tuner 1 can be used for another data source except when the decryption data D d is updated, and the data accumulator 17 can be used. The latest data can always be accumulated while suppressing the deterioration of the device.
- the configuration of the data receiving apparatus according to the third embodiment of the present invention will be described.
- the accumulated data is stored at a predetermined time from one of a plurality of data sources. In a distributed environment, it is suitable for updating storage data overnight with minimum power consumption.
- the storage type data receiver A rp 3 in this embodiment connects the comparator 11 and the power supply 21 of the storage type data receiver A rp 2 shown in FIG.
- a power supply controller 25 is newly provided.
- the data reception processing program stored in ROM 40B is slightly different from that of the storage type data reception device Arp3.
- the power supply controller 25 responds to the determination signal S j output from the comparator 11 1 and responds to each component of the storage-type data receiver A rp 3 by the power supply 21. It generates a power control signal Sp for controlling the supply of power.
- the power supply 21 changes power supply to each of the components of the data receiving device Arp 3 based on the power control signal Sp.
- Step S22 is set before 30 and a new step S52 is set between steps S50 and S54.
- the return destination of the processing after the step S70 is not the step S30, but the newly set step S22. The operation in these new steps S22 and S52 will be mainly described.
- step S22 the power supply controller 25 responds to the judgment signal Sj output from the comparator 11 and responds to the storage type data receiver A in the present embodiment.
- rp3 cuts off power to elements not needed for the next update of decryption data Dd.
- the display system elements represented by the tuner 1, the data extractor 3, the data display 19, and the tuner controller 23 are shown in FIG. The power supply to it is cut off. Then, power supply to the management system elements represented by the comparator 11, the clock 15 and the power supply controller 25 is continued.
- steps S30, S40, and S50 by the management system element is executed.
- step 350 ⁇ 63, that is, when the next update time T (inu) has been reached, the process proceeds to the next step S52.
- step S52 the power supply to the display element whose power supply has been cut off in step S22 is restarted. After that, the processing in steps S54, S60, and S70 by the display system element is executed. Then, the process returns to step S22 again, and the power supply to the display system is cut off.
- the power consumption is reduced, and the tuner 1 can be used for another data source other than when updating the data, and the data can be used. While suppressing the deterioration of the accumulator 17, the latest data can always be accumulated.
- the present embodiment is suitable for storing and storing data with minimum power consumption in an environment in which stored data is distributed from a plurality of data sources at predetermined times.
- the storage type data receiver Arp4 is configured such that the storage type program extractor 27 and the storage type program register 29 are added to the storage type data receiver Arp3 shown in FIG. Newly installed. Furthermore, the data reception processing program stored in the ROM 40B is slightly different from that of the storage type data receiver Arp1.
- the stored program extractor 27 connects the data decoder 5 and the next update information extractor 7, and the stored program register 29 is a stored program extractor 27 and a tuner controller 23. It is connected to the .
- the stored data extracting controller 27 newly added to the received data processing controller 40 described above causes the received data processing controller 40 R Is configured.
- the user operates the stored program register 29 to obtain the program identification information I p including various parameters indicating each of the plurality of broadcast programs for which the decoding data D d is desired to be stored. It can be registered in the stored program extractor 27.
- the program identification information Ip includes, as typified by EPG, a channel for broadcasting a program, a program identification number, a broadcast start / end time of the program, and information indicating the content. Information, etc., and other information can be added as needed.
- the stored program register 29 further outputs the broadcast channel information included in the program identification information Ip to the tuner controller 23 as a tuning channel signal St. .
- step S4 of the flowchart in the third embodiment shown in FIG. Step S2 is newly provided, and step S6 is newly provided between steps S4 and S10, and steps S54 and S6 are provided.
- Step S56 was newly added between 0.
- step S4 has been replaced by step S4R. Therefore, the operation by these new steps S2, S4R, S6, and S56 will be described. I explain mainly.
- step S2 the user operates the stored program register 29 to select a program identification indicating each of a plurality of broadcast programs for which the decoding data Dd is desired to be stored.
- the information I p is registered in the stored program extractor 27. Then, the process proceeds to the next step S4.
- step S4R the program identification information IP registered in step S2 and the channel controller 23 indicate the channel indicated by the user.
- the tuning channel signal St is output to the tuner 1.
- step S6 the program currently distributed is the program specified in step S2. It is determined whether there is.
- the contents of the program being distributed can be known by the decryption data Dd output from the data decoder 5.
- the desired program it is determined to be Yes, and the process proceeds to the next step S10.
- next step S56 After storing the next update information Inu together with storing the decoded data Dd of the channel desired by the user (S60) (S70), the display system element is displayed on the display system element.
- the power supply to the power supply is cut off (S22) and the next update time T (inu) is reached (S50)
- the table is displayed.
- the power supply to the indicator elements is restarted (S52) to prepare for the accumulation of the latest distribution data of the desired program.
- step S56 the stored program extractor 27 determines whether the currently distributed program is in step S2 in the same manner as the processing in step S6. It is determined whether or not the program is a designated program. Then, when the desired program is distributed, it is determined to be Yes, and the process proceeds to the next step S60. After that, the processing in steps S60, S70, S22, S30, S40, and S50 described above is repeated, and the data is repeated. Prepare for the next update of De.
- the stored data is transmitted from a plurality of data sources at predetermined times. Only when the data is updated, the power required to receive the data is turned on, and the tuner 1 is switched to the corresponding channel, and the data is stored in the data storage 17. Data De is written. As a result, it is not necessary to constantly supply power to a portion necessary for data reception, and it is not necessary to always set the tuner 1 to a channel to be stored overnight. Evening The number of times of writing to the accumulator 17 can be minimized.
- the power consumption is reduced, and the tuner 1 can be used for a data source other than when the data is updated, and the data storage device 17 can be used. It is possible to always accumulate the latest data while suppressing the deterioration of the data.
- the ROM 40B is used as a recording medium for recording the data reception processing program.
- other semiconductor memory may be used instead of the ROM 40B, or a floppy disk, a disk, a disk, a CD-ROM, etc.
- Other recording media may be used. It goes without saying that the recorded data reception program can be read out by a reading device suitable for these recording media. not.
- the decoder 5, the next update information extractor 7, the next update information storage 9, the comparator 11, and the accumulation controller 13 are mainly used. Although it is composed of software, the data decoder 5, the next update information extractor 7, the next update information storage 9, the comparator 11, the storage A part or all of the controller 13 may be constituted by hardware.
- the present invention is applied to a data receiving apparatus and a data receiving method for receiving a broadcast-type service has been described.
- the present invention can also be applied to a data receiving device and a data receiving method such as a personal computer that receives communication-type services such as the Internet.
- the present invention is directed to a data receiving apparatus that receives a broadcast-type service, or a par- ty that receives a communication-type service such as the Internet. It can be applied to storage-type data reception in data reception devices such as a personal computer.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- General Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Databases & Information Systems (AREA)
- Circuits Of Receivers In General (AREA)
- Electric Clocks (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99938571A EP1043842A4 (en) | 1998-08-31 | 1999-08-23 | DATA RECEIVER OF THE MEMORY TYPE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24486498 | 1998-08-31 | ||
JP10/244864 | 1998-08-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000013326A1 true WO2000013326A1 (fr) | 2000-03-09 |
Family
ID=17125137
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/004510 WO2000013326A1 (fr) | 1998-08-31 | 1999-08-23 | Recepteur de donnees de type a memoire |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1043842A4 (ja) |
CN (1) | CN1128506C (ja) |
WO (1) | WO2000013326A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10138486C1 (de) * | 2001-08-04 | 2003-02-20 | Loewe Opta Gmbh | Verfahren zum Sammeln von programmbeitragsbezogenen Daten und Schaltungsanordnung hierfür |
US8863192B2 (en) * | 2010-01-07 | 2014-10-14 | Qualcomm Incorporated | Adaptive monitoring method for update detection in a mobile broadcast network |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09186978A (ja) * | 1995-12-28 | 1997-07-15 | Sharp Corp | 文字放送受信装置 |
JPH10117151A (ja) * | 1996-10-11 | 1998-05-06 | Daihatsu Motor Co Ltd | 情報送信装置及び情報受信装置 |
JPH11112946A (ja) * | 1997-09-29 | 1999-04-23 | Matsushita Electric Ind Co Ltd | データ放送方法およびデータ放送自動受信装置 |
JPH11122586A (ja) * | 1997-10-14 | 1999-04-30 | Victor Co Of Japan Ltd | データ放送受信機 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4706121B1 (en) * | 1985-07-12 | 1993-12-14 | Insight Telecast, Inc. | Tv schedule system and process |
JPS6429973A (en) * | 1987-07-24 | 1989-01-31 | Matsushita Electric Ind Co Ltd | System for distributing and displaying image information |
JP3929553B2 (ja) * | 1997-06-11 | 2007-06-13 | 株式会社フィリップスエレクトロニクスジャパン | データ放送受信機の受信制御方法 |
-
1999
- 1999-08-23 CN CN99801488A patent/CN1128506C/zh not_active Expired - Fee Related
- 1999-08-23 EP EP99938571A patent/EP1043842A4/en not_active Withdrawn
- 1999-08-23 WO PCT/JP1999/004510 patent/WO2000013326A1/ja not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09186978A (ja) * | 1995-12-28 | 1997-07-15 | Sharp Corp | 文字放送受信装置 |
JPH10117151A (ja) * | 1996-10-11 | 1998-05-06 | Daihatsu Motor Co Ltd | 情報送信装置及び情報受信装置 |
JPH11112946A (ja) * | 1997-09-29 | 1999-04-23 | Matsushita Electric Ind Co Ltd | データ放送方法およびデータ放送自動受信装置 |
JPH11122586A (ja) * | 1997-10-14 | 1999-04-30 | Victor Co Of Japan Ltd | データ放送受信機 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1043842A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1043842A1 (en) | 2000-10-11 |
CN1128506C (zh) | 2003-11-19 |
CN1275269A (zh) | 2000-11-29 |
EP1043842A4 (en) | 2005-06-29 |
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