JP2002290869A - Digital broadcasting receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a digital broadcasting receiver for preventing a state where download software, etc., on digital broadcasting wave is missed to be fetched as much as possible. SOLUTION: The digital broadcasting receiver 30 is constituted so as to receive digital broadcasting wave, demodulating it and downloading software and/or data. When a download performing date previously set by a user comes, a power source control circuit 23 performs energizing to a circuit which is required for a download processing. A CPU 13 starts an operation by energizing and, then, performs control to the respective circuits for downloading. The user recognizes the download performing date by receiving a postcard, etc., from a maker.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiving apparatus for receiving digital broadcasting, and more particularly, to a digital broadcasting receiving apparatus configured to download an upgrade program or the like on a broadcast wave.

[0002]

2. Description of the Related Art For example, in a digital broadcast receiving system using satellites, a video (audio) signal is compressed using a digital signal compression technique, and a video (audio) digital signal of a plurality of programs is time-division multiplexed into a stream (transformer). Port stream) via a transponder (satellite repeater). On the other hand, a broadcast receiving apparatus that receives such a digital broadcast selects one of a plurality of transponders of the digital broadcast received through a dedicated antenna by a tuner, and selects one of a plurality of channels included in the one transponder. One is selected by demultiplex processing, and a video / audio signal is output by decoding a digital signal of the selected channel.

[0003] In such digital television broadcasting, new software and download data of common data (business logo, genre code, etc.) are loaded on broadcast waves in order to correct bugs and improve functions of software of the receiving apparatus. Transmitted. When the power is turned on, the receiving apparatus receives the transmitted download transmission information (corresponding model information (model_id), transmitted download data version (version_id), transmission schedule, and the like), and determines whether the download data is valid. It determines whether or not to perform a download process based on the setting conditions of the receiving device. The setting condition of the receiving device is a user's intention as to whether or not to execute the download. Under the user setting of not performing the download, the download process is not performed. on the other hand,
The receiving device that has determined to execute the download receives the download data transmitted at the set date and time within the transmission schedule, writes the downloaded data to a nonvolatile memory such as a flash memory, and writes the data at the next start-up or the like. By using data, software and common data have been upgraded.

[0004]

Transmission of the download transmission information is usually started one to two days before the download start date. If there is a period before the download starts, the receiving device turns off the power and saves power until that time, performs an automatic power-on process at the start, and supplies power to the circuits necessary to execute the download. Go and download. On the other hand, if the power-off state continues for a long time and the download transmission information has not been obtained, it is determined that there is no download and the power supply to the necessary circuit is turned off.
It remains FF and no download is performed. For example, when the user keeps the power of the receiving apparatus OFF for a long time due to a long trip or the like, the download is not performed even if the download software or the like is loaded on the digital broadcast wave during that period. .

In view of the above circumstances, it is an object of the present invention to provide a digital broadcast receiving apparatus capable of minimizing a situation where download software or the like loaded on a digital broadcast wave is not missed. .

[0006]

According to the present invention, there is provided a digital broadcast receiving apparatus configured to receive and demodulate a digital broadcast wave and download software and / or data to solve the above-mentioned problem. In the broadcast receiving device, storage means for storing download execution date and time information input by a user, and control for executing a process necessary for download by energizing a circuit necessary for download when the execution date and time has arrived Means.

[0007] With the above configuration, for example, when the user performs a long-term trip or the like, the download date and time information is given to the receiving device so that the receiving device has reached the execution date and time. Since downloading is sometimes performed, it is possible to prevent a situation in which capture of download software or the like is missed. The date and time of execution of the download can be notified to the user by notification from the manufacturer to each user by mailing a postcard or by notification on a newspaper.

The digital broadcast receiving apparatus according to the present invention is a digital broadcast receiving apparatus configured to receive and demodulate a digital broadcast wave to download software and / or data. Storage means for storing periodic information indicating the date and time; and control means for performing a process required for download by energizing a circuit required for download when the periodic time has arrived. .

[0009] In the above configuration, even if there is no notification from the manufacturer to each user by postcard mail or the like on a newspaper, the download is performed periodically, so that the download software or the like is not taken in. Can be prevented as much as possible.

When power is supplied to a circuit necessary for download and a process required for download is executed, if the download is out of the transmission period and information on the download transmission schedule is obtained, the download transmission is performed. It is preferable that the schedule information is stored, the power is temporarily turned off, the automatic power is turned on in accordance with the schedule, the circuit necessary for download is energized, and the process required for download is executed. Further, it is preferable that an on-screen display screen that prompts the user to input download execution date / time information or periodic information indicating the download execution date / time is displayed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to FIG.
The following description is based on the assumption that the user is BS (Bro
(adcasting Satellite) illustrates a case of viewing digital broadcasting.

The antenna 1 is arranged outdoors in a predetermined direction, and receives a digital broadcast signal transmitted from a BS. The antenna 1 generally includes a frequency converter, and supplies a received / frequency-converted signal to a tuner 2.

The tuner 2 extracts a signal of a specific frequency from the received high-frequency digital modulation signal. That is, a process of selecting one from a plurality of digital broadcast transponders is performed. Further, the tuner 2 includes a demodulation circuit, a deinterleave circuit, an error correction circuit, and the like, and thereby demodulates the selected digital modulation signal and outputs a transport stream.

A demultiplexer (DEMUX) 3 converts the transport stream received from the tuner 2 into an MPEG2 (Moving Picture Ex
parts transport group 2) video transport packet, audio transport packet, PSI /
SI (Program Specific Information)
nation / Service Information
n), and download program packets. The demultiplexer 3 converts the video transport packet and the audio transport packet into A
The data is supplied to the V decoder 4 and the PSI / SI, the download program and the like are supplied to the CPU 13. As described above, a plurality of channels are multiplexed in the transport stream, and a process for selecting an arbitrary channel from among the channels is performed by selecting an arbitrary channel from the PSI / SI in the transport stream. It becomes possible by extracting data such as which packet ID is multiplexed. Further, the download program itself and the ID for extracting the download program itself can be extracted from the PSI / SI. Further, the selection of the transport stream (the selection of the transponder) can also be performed based on the PSI / SI information.

The AV decoder 4 includes a video decoder for decoding video transport packets and an audio decoder for decoding audio transport packets. The video decoder is
The input variable length code is decoded to obtain a quantization coefficient and a motion vector, and inverse DCT transform and motion compensation control based on the motion vector are performed. The audio decoder generates audio data by decoding the input coded signal. 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, performs D / A conversion, and performs, for example, NTSC.
Convert to a composite signal of the format. The audio signal processing circuit 6 receives the audio data output from the AV decoder 4, performs D / A conversion, and generates a right (R) sound analog signal and a left (L) sound analog signal. The video output circuit 7 and the audio output circuit 8 include an output resistor, an amplifier, and the like. The AV output terminal 9 is provided with an output unit (a set of left and right audio output terminals and a video output terminal).
A monitor (not shown) is connected to this output unit.

An OSD (on-screen display) display circuit 12 outputs bitmap data based on character information and graphic information specified by the CPU 13 to the adder 20. The adder 20 incorporates the bitmap data into an image. By the OSD display circuit 12, the CPU 1
3 received an electronic program guide (EPG: (Electroni) based on the service information contained in the PSI.
c Program Guide)), a display such as a setting screen for prompting the user to input the execution date and time of the download is realized.

The IC card 21A includes key information for enabling viewing of a pay program and a PPV which is charged for each program.
(Pay-per-view) Stores purchase history information of a program. Further, the IC card connector 21 performs a writing process and a reading process of various information between the CPU 13 and the IC card 21A.

The modem 22 operates in a dial-up connection to a broadcaster when charging information is periodically transmitted.

The remote control transmitter 10 is a transmitter for sending a command to the broadcast receiving device 30. The remote control transmitter 10 is provided with a power key, a channel designation key, a direction key, an enter key, and the like. When a key provided on the remote control transmitter 10 is operated, a signal light (remote control signal) indicating a command corresponding to the key is transmitted from a light emitting unit (not shown). The remote control light receiver 11 receives the signal light, converts it into an electric signal,
Give to 3.

A non-volatile memory (for example, an EEPROM
Etc.) 14A stores various information such as a boot program, a download program, and common data. When the power is turned on, the CPU 13 executes the boot program written in the nonvolatile memory 14A, and performs initialization and the like necessary for the system. Then, the program in the non-volatile memory 14A is expanded to the volatile memory 14B, and the program expanded in the volatile memory 14B is
3 executes. The common data is developed in the volatile memory 15 by a program initialization routine.

The power control circuit 23 receives an AC power from a power outlet and performs various DC operations by rectification / step-down operation.
Power is generated and supplied to each circuit. The power supply control circuit 23 has a clock function, and supplies power to necessary circuits when the date and time (for example, the download execution date and time) set by the CPU 13 arrives.

The CPU 13 sends a signal to the power supply control circuit 23 in a setting state in which the user selects a program using the remote control transmitter 10 or the like, displays an EPG screen for the program selection process, and downloads the program. An execution date and time notification process, a process of writing a program and data when downloading is performed to the nonvolatile memory 14A, and the like are performed.

Further, as a process according to the present invention, the CPU 13 displays a screen for prompting the user to input download execution date and time information on the display using the OSD function. As a procedure for displaying this screen, for example,
By operating a menu key provided on the remote control transmitter 10, a function list is displayed on a display, and a cursor is placed on an item such as "input of download execution date and time information" in the list using the arrow keys. (Change the color) and press the enter key to call the execution date and time information input mode. The input of the execution date and time information is performed using, for example, a channel key (numerical key) of the remote control transmitter 10. The date and time of the download may be notified to the user by a postal mail notification from the manufacturer to each user (for example, when user registration is performed after the purchase of the receiving device) or a notice on a newspaper. it can.

When the execution date and time information of the download is input by the user, the CPU 13
A stores the execution date and time information and the information that the execution of the download process is requested at this date and time, and supplies the execution date and time information to the power supply control circuit 23.
The power supply control circuit 23 uses a timer function to supply power to circuits (including the CPU 13) necessary for executing the download when the execution date and time comes. CP
U13 acquires from the nonvolatile memory 14A information indicating that the execution of the download process is requested,
, And the information separation process by the demultiplexer 3 is executed to obtain a download program and the like, and store it in the nonvolatile memory 14A.

With such a configuration, for example, when the user performs a long-term trip, the download execution date / time information is given to the receiving device 30 so that the receiving device 30 receives the execution date / time. Since the download is executed when the download is performed, it is possible to prevent a situation in which the download software or the like is missed. If the user inputs the execution date and time by mistake, the power of the receiving device 30 is automatically turned on and the download process is executed even though the download download transmission period has not yet started. Become.
However, in this process, download transmission information may be obtained. In such a case, the download transmission information may be obtained and downloaded during a transmission period at a later date.

In the above embodiment, the download execution date and time information is given to the receiving device 30. However, the periodic information indicating the download execution date and time may be given to the receiving device 30. The periodic information is given, for example, on the first day of every month or on the 15th of an odd month. The input operation is the same as in the above embodiment. With such a configuration, even if there is no notification by postcard or the like from the manufacturer to each user, or a notification on a newspaper, etc., the download is performed periodically, so the download software or the like is missed. The situation can be prevented as much as possible. Also in this regular implementation configuration, even though the download transmission period has not yet started, the receiving device 30 is automatically turned on and a process for downloading is performed. Information may be obtained. In such a case, the download transmission information may be obtained, and the download may be performed during a transmission period at a later date.

[0028]

As described above, according to the present invention, for example, even when the user travels for a long period of time, the receiving apparatus can be operated when the execution date and time specified by the user has arrived, or Since the download is executed at the designated period, it is possible to prevent a situation in which the downloading of the download software or the like is missed as much as possible. In addition, when power is supplied to a circuit necessary for download and processing required for download is performed, if the download transmission period is out of range and information on the download transmission schedule is obtained, the download transmission schedule If the configuration is such that the information is stored, the power is temporarily turned off, the automatic power is turned on according to the schedule, and the circuit necessary for the download is energized to execute the processing required for the download, the capture of the download software or the like is missed. This has the effect that the situation can be more reliably prevented.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a broadcast receiving apparatus according to an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 antenna 2 tuner 3 demultiplexer (DEMUX) 4 AV decoder 10 remote control transmitter 13 CPU 14A non-volatile memory 14B volatile memory 22 modem 23 power supply control circuit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 5/445 H04N 5/445 Z 7/08 7/08 Z 7/081

Claims (4)

[Claims] 1. A digital broadcast receiving apparatus configured to receive and demodulate a digital broadcast wave and download software and / or data, a storage unit for storing download date and time information input by a user, A digital broadcast receiving apparatus, comprising: a control unit for energizing a circuit required for download when the execution date and time arrives and executing a process required for download. 2. A digital broadcast receiving apparatus configured to receive and demodulate a digital broadcast wave and download software and / or data, wherein a storage for storing periodic information indicating a download execution date and time input by a user. A digital broadcast receiving apparatus comprising: means for controlling a circuit required for download when the period has come, and a control means for executing a process required for download. 3. The digital broadcast receiving apparatus according to claim 1, wherein when a circuit required for download is energized and a process required for download is executed, the digital broadcast receiving apparatus is out of a download transmission period. And, when the information of the download transmission schedule is obtained, the information of the download transmission schedule is stored, the power is temporarily turned off, the automatic power is turned on according to the schedule, and the circuit necessary for the download is energized. A digital broadcast receiving apparatus configured to execute processing required for downloading. 4. The digital broadcast receiving apparatus according to claim 1, wherein an on-screen display screen for prompting a user to input download execution date / time information or periodic information indicating download execution date / time is displayed. A digital broadcast receiving apparatus characterized in that the digital broadcast receiving apparatus is configured to: