JP2007235190A - Mobile digital broadcast receiving terminal and firmware update method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile digital broadcast receiving terminal and a firmware update method, capable of avoiding overlapping among downloading and update of firmware and reservation video recording without taking time and labor. <P>SOLUTION: A broadcast reception section 1 receives a digital broadcast radio wave including video, audio and firmware. A video recording reservation receiving section 2 executes video recording reservation for digital broadcast programs. A firmware download and update reservation information storage section sets a download and update time of the firmware within a receivable period in a firmware distribution period on the basis of a video recording reservation period of a digital broadcast program, and a firmware update section 10 executes downloading and update of the firmware. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a portable digital broadcast receiving terminal and a firmware updating method.

  In digital terrestrial television broadcasting, the broadcasting format for downloading the software of the receiver is regulated by ARIB (Incorporated Association: Radio Industry Association). According to ARIB TR-B14, it is assumed that the download is performed in order to correct the receiver software (for example, bug fix), add a function, or change the function. In addition, in the current digital terrestrial television broadcasting, since the implementation of so-called frequency repacking in which the frequency is changed at the end of the analog broadcasting is assumed, the contents regarding the update of the frequency list are also included in the standard. In the firmware update, first, distribution schedule information is notified to the receiver by meta information (update information) called SDTT (Software Download Trigger Table). Since the firmware data is broadcast according to the schedule, the receiver activates the tuner, tunes to the reception channel, and then performs download and update processing.

In the case of a mobile terminal (for example, a mobile phone) that can receive digital broadcasting, the tuner may not be turned on for a long time due to the reception environment and power saving, and there is no guarantee that SDTT or firmware data can be received in advance. For this reason, it has been proposed that a maker notifies a user in advance with a postcard or the like, and inputs and reserves the date and time for downloading and updating the user himself / herself (eg, patent Reference 1).
Japanese Patent Laid-Open No. 2002-290869

  In the case of a portable terminal capable of receiving digital broadcasting, even if the SDTT is received in advance and the firmware distribution schedule is known, the firmware may not be received depending on the reception environment. In the case of a receiving terminal having a reservation recording function, the firmware download and update and the reservation recording time may overlap. If only one tuner is installed, and if it is received from the same broadcast wave, both data can be received even if firmware download and update and scheduled recording overlap. If the channels are different, both of these data cannot be received, and it is necessary for the user himself to download and update the firmware in order to avoid duplication of firmware download and update and scheduled recording. Take it.

  An object of the present invention is to provide a portable digital broadcast receiving terminal and a firmware updating method capable of avoiding duplication of firmware download and update and scheduled recording without trouble.

A portable digital broadcast receiving terminal according to the present invention includes:
Receiving means for receiving digital broadcast radio waves including video, audio and firmware;
Reservation recording means for performing reservation recording of the digital broadcast program;
Download and update means for downloading and updating the firmware;
And setting means for setting the download and update times of the firmware based on a reserved recording period of the digital broadcast program.

The firmware update method according to the present invention includes:
A receiving step of receiving digital broadcast radio waves including video, audio and firmware;
A scheduled recording step for performing scheduled recording of the digital broadcast program;
A download and update step for downloading and updating the firmware;
And a setting step for setting times for downloading and updating the firmware based on a reserved recording period of the digital broadcast program.

  According to the present invention, the firmware download and update times are set within the receivable period of the firmware distribution period based on the reserved recording period of the digital broadcast program. This eliminates the need for the user to download and update firmware in order to avoid duplication of firmware download and update and scheduled recording. Can be avoided.

Embodiments of a portable digital broadcast receiving terminal and a firmware updating method according to the present invention will be described in detail with reference to the drawings. In the drawings, the same steps are denoted by the same reference numerals.
FIG. 1 is a diagram showing an embodiment of a portable digital broadcast receiving terminal according to the present invention.
The portable digital broadcast receiving terminal shown in FIG. 1 is realized as, for example, a battery-driven mobile phone device that receives terrestrial or satellite digital broadcast radio waves, and includes a broadcast receiving unit 1, a recording reservation receiving unit 2, and a recording reservation. An information storage unit 3, a recording unit 4, an SDTT receiving unit 5, a firmware download and update reservation information holding unit 6, a firmware receiving unit 7, a memory 8, a control unit 9, and a firmware updating unit 10 are provided. Yeah.

  The broadcast receiving unit 1 receives digital broadcasting radio waves of an arbitrary system including SDTT as image, sound, firmware, and update information (meta information), and demultiplexes the stream. The recording reservation receiving unit 2 receives a recording reservation from the user. The recording reservation information holding unit 3 holds the recording reservation information delivered from the recording reservation receiving unit 2. The recording unit 4 reads the recording reservation information from the recording reservation information holding unit 3, receives information related to the recording data such as images, sounds, and data broadcasts from the broadcast receiving unit 1 from the recording start time to the end time, and the memory 8 To record. The SDTT receiving unit 5 receives the SDTT from the broadcast receiving unit 1 and analyzes the SDTT. The firmware download and update reservation information holding unit 6 holds firmware update reservation information. The firmware receiving unit 7 receives firmware from the broadcast receiving unit 1.

  The memory 8 stores recording data from the recording unit 4 and firmware from the firmware receiving unit 7. The control unit 9 refers to the firmware distribution information from the SDTT receiving unit 5 and the recording reservation information from the recording reservation information holding unit 3 and updates the firmware update reservation information for scheduling the firmware download after the firmware distribution starts and immediately before the recording reservation. The firmware download and update reservation information holding unit 6 is passed. Based on the firmware update reservation information, the firmware update unit 10 checks whether it can be received on the reception channel when the reserved time is reached. If it can be received, it updates the firmware. Reschedule immediately before the next recording reservation of the recording reservation information.

Next, the data flow of the present invention will be described. First, FIG. 2 shows a data flow from reception of SDTT to reservation of time for firmware update.
If SDTT is included in the data received by the broadcast receiver 1 (step S1), the firmware distribution period, firmware size and distribution channel are extracted by the SDTT receiver 5. The firmware distribution period means a predetermined period (for example, 4 and a half hours) determined by the receiver. Next, the control unit reads the recording reservation information from the recording reservation information storage unit, and determines whether there is a recording reservation at the firmware distribution start time (step S2). When a recording reservation is made in advance in the recording reservation information storage unit 3 by the recording reservation receiving unit 2, the recording reservation information is stored in the recording reservation information storage unit 3. As shown in FIG. 3, the recording reservation information includes a recording start time, a recording end time, an image quality, a channel, and a data size.

  If there is no recording reservation, confirm that the memory for storing the firmware can be secured, then reserve the firmware update time during the firmware distribution period, and store it in the firmware download and update reservation information holding unit 6 to distribute the firmware. Update processing is scheduled at time (step S3).

  Here, the time from turning on the tuner of the portable digital broadcast receiving terminal to the end of tuning and receiving the firmware on the receiving channel, and the update process using the downloaded firmware are performed. A processing time required for updating a series of firmware for restarting the digital broadcast receiving terminal is referred to as an update time.

  When there is a recording reservation, the control unit 9 schedules the firmware update process after the recording process until the firmware distribution end time, and stores the firmware update reservation information in the firmware download reservation information holding unit (step S4). As shown in FIG. 4, the firmware update reservation information holds a recording start time, a recording end time, a reception channel, and a data size.

  Next, FIG. 5 shows a data flow in which update processing is actually performed according to the schedule. First, it is determined whether or not the time has reached the reservation time held in the firmware download and update reservation information holding unit 6 (step S11). If the time has reached the reservation time, the firmware update unit 10 activates the tuner. Then, it is determined whether the firmware is broadcast on the receiving channel, that is, whether the firmware can be received (step S12). If it can be received, the firmware is downloaded (step S13), and then the update process is performed (step S14). If reception is impossible, reschedule processing of update processing is performed (step S15).

  Next, FIG. 6 shows a data flow for performing update execution processing. First, a download process described later is performed (step S21), the firmware data is copied from the memory 8 to the storage area (step S22), and the firmware data is verified (step S23). The firmware in the storage area is deleted after restarting the portable digital broadcast receiving terminal (step S24) (step S25).

  Next, a data flow for performing the download process is shown in FIG. First, the tuner power supply is turned on (step S31), and then the channel to be downloaded is tuned (step S32). Thereafter, it is determined whether or not firmware broadcast is detected (step S33). If firmware broadcast is detected, the firmware receiving unit 7 receives the firmware and sequentially stores the firmware in the memory 8 (step S34). ) If no firmware broadcast is detected, the process returns to step S32.

  Next, a first example of a data flow for performing rescheduling processing is shown in FIG. In this flow, as shown in FIG. 9, the case of rescheduling at regular intervals is shown. First, the rescheduling interval (X) is added to the current time (previous schedule time) (step S41). It is determined whether or not the time is included in the recording reservation time stored in the recording reservation information storage unit (step S42). If it is included in the scheduled recording time, a reschedule interval (X) is further added (step S43), and the process returns to step S42. If it is not included in the image reservation time, it is determined that duplication with the recording time is avoided, and download and update processing are scheduled at that time (step S44).

  According to this example, when the firmware is downloaded, the recording time and the firmware update process desired by the user can be executed without interruption by rescheduling the download time so as not to overlap the recording period.

  Next, a second example of a data flow for performing rescheduling processing is shown in FIG. In this flow, as shown in FIG. 11, when the recording time and the rescheduling interval (X) are added from the previous schedule time and the time to reschedule overlaps, the schedule is started before the recording process is started. The case where it does is shown. In this case, after step S42, it is determined whether scheduling is possible immediately before recording (step S51). If scheduling is possible, the download and update process is scheduled immediately before the recording start time (step S52), and the process proceeds to step S44. If scheduling is not possible, the process proceeds to step S43.

  Due to the nature of a portable terminal such as a portable digital broadcast receiving terminal, it is necessary to store recorded data and firmware contents in its built-in memory. Further, since the firmware contents are stored in about 1/8 to 1/10 of the capacity of the built-in memory, it is preferable to end the download and update process while the memory has free capacity. Since the recording data is stored in the memory by the recording process, and there is a case where there is no free space in the memory for storing the firmware after that, according to this example, the firmware download and update processing is performed before the recording processing in which the memory has the free capacity. Since the process is completed, it is not necessary to save the firmware, and it is not necessary to secure a temporary storage area for saving the firmware. As a result, the memory use efficiency can be improved without interrupting any of the recording process and the download / update process.

  Next, a third example of a data flow for performing rescheduling processing is shown in FIG. In this flow, as shown in FIG. 13, a rescheduling interval (X) is added from the recording time and the previous schedule time, and when the time to reschedule overlaps, the schedule is started after the recording process is started. This is shown when the memory has free space. In this case, after step S42, it is determined whether scheduling is possible immediately after recording (step S61). If scheduling is possible, the download and update process is scheduled immediately after the recording start time (step S62), and the process proceeds to step S44. If scheduling is not possible, the process proceeds to step S43.

  According to this example, it is possible to shift to the firmware download process while starting the tuner after the recording process, so that it is possible to omit the power consumption required for starting the tuner once, thereby contributing to the reduction of power consumption. Can do.

  Next, a fourth example of a data flow for performing rescheduling processing is shown in FIG. As shown in FIG. 15, this flow shows a case where only the download time is performed simultaneously with the recording process only when the reception channel and the recording channel match. In this case, if it is determined in step S42 that the time obtained by adding the reschedule interval (X) to the current time (previous schedule time) is not included in the recording reservation time, the download and update processing is scheduled (step S71). ) If it is determined in step S42 that the above time is included in the scheduled recording time, it is determined whether or not the reception channel (download channel) matches the recording channel (step S72).

  If the reception channel matches the recording channel, the download process is scheduled at a time immediately after the recording start time (steps S73 and S74), and the update process is scheduled immediately after the recording end time (step S75). On the other hand, if the reception channel does not match the recording channel, the process proceeds to step S51.

  According to this example, when the reception channel and the recording channel match, only the download time is performed simultaneously with the recording process, thereby shortening the processing time related to the firmware update process compared to the process of downloading the firmware at another time and consuming Power can be reduced.

The present invention is not limited to the above-described embodiment, and many changes and modifications can be made.
For example, in the above embodiment, the case where a battery-powered mobile phone device is used as a mobile digital broadcast receiving terminal has been described. The present invention can be applied.

  In addition, although the case where SDTT as update information is received from a broadcast wave has been described, it is also possible to obtain update information not via reception but through network download via a communication means to the telephone network. ) It can also be obtained by email or other message.

It is a figure which shows embodiment of the portable digital broadcast receiving terminal by this invention. It is a figure which shows the data flow after receiving SDTT until it reserves the time for firmware update. It is a figure which shows an example of reservation video recording information. It is a figure which shows an example of firmware update reservation information. It is a figure which shows the data flow which performs an update process according to a schedule actually. It is a figure which shows the data flow which performs an update execution process. It is a figure which shows the data flow which performs a download process. It is a figure which shows the 1st example of the data flow which performs a rescheduling process. It is a figure which shows the case where it reschedules for every fixed time. It is a figure which shows the 2nd example of the data flow which performs a rescheduling process. It is a figure which shows the case where it schedules before the start of a recording process, when recording time and the rescheduled time overlap. It is a figure which shows the 3rd example of the data flow which performs a rescheduling process. It is a figure which shows the case where it schedules after the start of a video recording process, when video recording time and the rescheduled time overlap. It is a figure which shows the 4th example of the data flow which performs a rescheduling process. It is a figure which shows the case where only a download time is performed simultaneously with a recording processing time only when a receiving channel and a recording channel match.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Broadcast receiving part 2 Recording reservation reception part 3 Recording reservation information preservation | save part 4 Recording part 5 SDTT receiving part 6 Firmware download and update reservation information holding part 7 Firmware receiving part 8 Memory 9 Control part 10 Firmware update part

Claims (10)

Receiving means for receiving digital broadcast radio waves including video, audio and firmware;
Reservation recording means for performing reservation recording of the digital broadcast program;
Download and update means for downloading and updating the firmware;
A portable digital broadcast receiving terminal comprising: setting means for setting a download and update time of the firmware based on a reserved recording period of the digital broadcast program.   2. The portable digital broadcast receiving terminal according to claim 1, wherein the setting means sets the download and update times of the firmware to be different from a reserved recording period of the digital broadcast program.   3. The portable digital broadcast receiving terminal according to claim 2, wherein the setting means sets the download and update times of the firmware immediately before a reserved recording period of the digital broadcast program.   3. The portable digital broadcast receiving terminal according to claim 2, wherein the setting means sets the download and update times of the firmware immediately after a reserved recording period of the digital broadcast program.   The setting means sets the download time of the firmware during the reserved recording period of the digital broadcast program, and sets the update time of the firmware immediately after the reserved recording period of the digital broadcast program. The portable digital broadcast receiving terminal according to claim 1. A receiving step of receiving digital broadcast radio waves including video, audio and firmware;
A scheduled recording step for performing scheduled recording of the digital broadcast program;
A download and update step for downloading and updating the firmware;
A firmware updating method comprising: a setting step of setting a time for downloading and updating the firmware based on a reserved recording period of the digital broadcast program.   7. The firmware update method according to claim 6, wherein a time for downloading and updating the firmware is set to be different from a reserved recording period of the digital broadcast program.   8. The firmware update method according to claim 7, wherein a time for downloading and updating the firmware is set immediately before a reserved recording period of the digital broadcast program.   8. The firmware update method according to claim 7, wherein a time for downloading and updating the firmware is set immediately after a reserved recording period of the digital broadcast program.   The download time of the firmware is set during a reserved recording period of the digital broadcast program, and the update time of the firmware is set immediately after the reserved recording period of the digital broadcast program. The firmware update method according to claim 6.

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