WO2008038404A1

WO2008038404A1 - Receiving method and receiver apparatus

Info

Publication number: WO2008038404A1
Application number: PCT/JP2007/000759
Authority: WO
Inventors: Katsuaki Hamamoto; Keishi Kato; Takeshi Sakamoto; Sanshirou Shiina; Atsushi Wada; Yoshitaka Ueda
Original assignee: Sanyo Electric Co., Ltd
Priority date: 2006-09-25
Filing date: 2007-07-12
Publication date: 2008-04-03
Also published as: CN101518057A; JP2008079186A

Abstract

To reduce viewers' stresses caused by a standby time in which a display starts. A tuner part (10), a demodulating part (12) and a decoding part (14) receives a radio signal and subjects the received radio signal to a plurality of successive stages of processing, thereby reproducing information included in the radio signal. A display part (20) displays the reproduced information. A PLL lock detecting part (26), an AGC lock detecting part (30), a mode determination detecting part (34), a frame synchronization detecting part (38), a decoding start detecting part (40) and a buffer information detecting part (42) acquire a progress of the plurality of stages of processing. A control part (16) causes the display part (20) to display a progress to the start of displaying information in accordance with the acquired progress of the plurality of stages of processing.

Description

Specification

Receiving method and receiving apparatus

Technical field

The present invention relates to reception technology, and more particularly to a reception method and reception apparatus for reproducing information included in a received radio signal.

Background art

When terrestrial digital television broadcasts are received by a mopile device such as a mobile telephone terminal, the radio wave intensity and the multipath state change depending on the reception location. For this reason, it is not always possible to receive the channel being broadcast well. In areas where reception is difficult, as in the case where the radio wave intensity is weak or when there is a long delay multipath, a reception process retry occurs, and the waiting time until the video is displayed becomes long. Furthermore, in places where reception is not possible, although reception can not be performed, reception must continue to be performed until a reception processing timeout occurs. Under the above conditions, a technology has been proposed to display on the display that the location is appropriate or inappropriate for reception based on the C / N estimation value of the reception channel and the like. Also, the technology displays on the display why the reception failed (see, for example, Patent Document 1).

Patent Document 1: Japanese Patent Application Laid-Open No. 2 00 4 _ 2 2 8 6 9 5

Disclosure of the invention

Problem that invention tries to solve

[0003] However, even if it is indicated on the display that the location is appropriate or inappropriate for reception, such information provision is only a guide, and even if it is indicated as an inappropriate environment, The viewer must keep waiting for reception during the reception process retry period. Note that the reception retry period is at the longest until reception processing timeout occurs. Therefore, it is insufficient to reduce the stress caused by the viewer's waiting time. Meanwhile, Even if the reason for failure is displayed, this information is only the information provided after the reception processing timeout occurs, and stress due to latency is not reduced.

The present inventor recognizes the situation and makes the present invention, and an object thereof is to provide a receiving technology for reducing the stress of the viewer due to the waiting time until the display is started. It is to be.

Means to solve the problem

[0005] In order to solve the above problems, a receiving apparatus according to an aspect of the present invention receives a wireless signal, and continuously performs a plurality of steps of processing on the received wireless signal. A processing unit that reproduces included information, and a display unit that displays information reproduced by the processing unit. The display unit displays the progress status until the display of information is started, according to the progress status of the processing in a plurality of stages in the processing section.

According to this aspect, since the progress status until the display of information is started is displayed according to the progress status of the multi-step processing, the progress status corresponding to the actual processing can be displayed. , You can reduce the stress of the audience.

The storage device may further include a storage unit that stores a table in which each of a plurality of stages of processing in the processing unit is associated with a progress status until display of information starts. The processing unit outputs information indicating the processing status from each of the plurality of stages of processing, and the display unit refers to the table stored in the storage unit based on the information from the processing unit. You may derive the progress status until the display of information starts. In this case, the progress status can be derived while referring to the table, so processing can be performed easily.

When execution is newly started in any of multiple stages of processing, the processing unit outputs the information indicating the start of execution as information indicating the status of the process, and displays the information. The department may update the progress status so as to start the process before the newly started process when the information from the processor is input. In this case, progress is made so that the processing before the newly started processing is started. Since the negotiation status has been updated and the previous process has already been completed, the progress status can be reliably updated.

When the processing unit is re-executed in any of the plurality of stages of processing, the processing unit outputs the information indicating the re-execution as the information indicating the processing status, and the display unit If you input information from the processing unit, you may stop updating progress status. In this case, since progress status is not updated when re-execution is performed, progress status corresponding to actual processing can be displayed.

[0010] When the processing unit is re-executed, the processing unit starts a timer indicating a time-out period, and the display unit proceeds to time-out according to the content of execution by the timer in the processing unit. You may display the status of negotiations. In this case, when progress is re-executed, the progress status to the time is displayed, so that the waiting time can be notified to the viewer.

[001 1] Another aspect of the present invention is a receiving method. This method comprises the steps of: receiving information from a radio signal; and continuously executing a plurality of steps of processing on the received radio signal to reproduce information contained in the radio signal; According to the situation, the steps of displaying the progress status until the display of the information is started, and displaying the reproduced information.

The replaying step outputs information indicating the processing status from each of the multistage processing, and the step of displaying the progress status includes displaying each of the multistage processing and the information. The progress status until the display of information may be derived may be derived based on the information from the reproduction step while referring to the table in which the progress status before start is associated. In the replaying step, when execution is newly started in any of a plurality of stages of processing, information indicating the start of execution is output as the information indicating the state of processing, and the progress status is progressed. In the step of displaying the progress status, the progress status may be updated so that, when the information from the step to be reproduced is input, the processing before the newly started processing of the processing is started.

[0013] The step of regenerating may be re-executed in any one of multiple stages of processing. If it is done, the information indicating the re-execution is output as the information indicating the processing status, and the step of displaying the progress status is the progress status if the information from the replaying step is input. You may stop updating. The replaying step starts the timer indicating the period until time-out when re-execution is performed, and the step of displaying the progress status is time-saving according to the contents of execution by the timer in the replaying step. You may display the progress status of

[0014] Note that any combination of the above-described components, and a conversion of the expression of the present invention between a method, an apparatus, a system, a recording medium, a computer program and the like are also effective as aspects of the present invention.

Effect of the invention

According to the present invention, it is possible to reduce the viewer's stress caused by the waiting time until the display is started.

Brief description of the drawings

FIG. 1 is a view showing the configuration of a receiving apparatus according to an embodiment of the present invention.

[FIG. 2] FIGS. 2 (a) and 2 (b) are views showing screens for setting functions displayed on the display unit of FIG.

FIG. 3 is a view showing a data structure of a table showing the relationship between the process and the degree of progress stored in the control unit of FIG. 1;

[Fig. 4] Fig. 4 (a)-(e) is a diagram showing the screen of the progress status displayed on the display unit of Fig. 1.

[FIG. 5] FIGS. 5 (a) to 5 (d) are diagrams showing other screens of the progress status displayed on the display unit of FIG.

6 is a flowchart showing a reception procedure by the tuner unit, the demodulation unit, and the decoding unit in FIG.

7] A flow chart showing a display procedure by the receiving apparatus of FIG. 1. [FIG.

Explanation of sign

1 0 tuner unit, 1 2 demodulation unit, 1 4 decoding unit, 1 6 control unit, 1 8 operation unit, 20 display unit, 22 antenna, 24 PLL , 2 6 PLL lock detection unit, 2 8 AG C, 30 AGC lock detection unit, 3 2 mode identification unit, 34 mode identification detection unit, 36 frame synchronization unit, 3 8 frame synchronization detection unit, 40 decoding Start detection unit,

42 Buffer information detector, 100 receiver.

BEST MODE FOR CARRYING OUT THE INVENTION

Before specifically describing the present invention, an overview will be given. An embodiment of the present invention relates to a receiver for receiving a radio signal of digital terrestrial television broadcasting and reproducing an image from the received radio signal. For example, the receiving device is a portable terminal device, and the portable terminal device incorporates a display. Therefore, the viewer moves while holding the portable terminal device, and tunes the channel in the middle of the movement. At that time, the viewer wants the program of the tuned channel to be displayed quickly, and if the waiting time until the display starts becomes long, the viewer feels stressed. In order to reduce the stress on the viewer due to the waiting time until the display is started, the receiving device according to the present embodiment performs the following processing.

The receiving device displays the progress of reception processing until the video is displayed on the display while sequentially updating it. At that time, graphs and animations are used to update the progress. In addition, the receiver unit includes a tuner unit, a demodulation unit, and a decode unit, and the progress of the reception process until the image is displayed relates to the progress of the process from these units. The progress information is read out and estimated with reference to the table of progress for progress information stored in advance. Here, the decoding sound | 5 corresponds to, for example, the MPEG (Moving Picture Experts G roup) 2 or H.264. If a reception process retry occurs and the progress of the reception process stagnates, the receiving device stops updating the display of the progress of the reception process. Furthermore, the receiving device executes the time-out process, but the progress of the time-out process is also displayed on the display while being successively updated using a graph, animation, or the like. In addition, the display also shows the details of the processing being performed and the reason why the reception processing has been retried. Ru.

FIG. 1 shows a configuration of a receiving apparatus 100 according to an embodiment of the present invention. The receiving apparatus 100 includes a tuner unit 10, a demodulation unit 12, a decoding unit 14, a control unit 16, an operation control unit 8, and a display unit 20. The tuner unit 10 includes an antenna 22, a PLL (Phase Locked Loop) unit 24, and a PLL lock detection unit 26. The demodulation unit 512 has an AGC (Au tic ic G ain C ontro I). 28) AGC lock detection unit 30, mode identification unit 32, mode identification detection unit 34, frame synchronization unit 36, frame synchronization detection unit 38, and decode unit 14 detects decode start It includes a unit 40 and a buffer information detection unit 42.

The operation unit 18 is constituted by a button or the like, and receives an instruction from a viewer. There are several types of instructions from the viewer, one of which is channel selection. Also, although the details will be described later, in the instruction, the time until the time-out for the time processing, the processing content being executed, and whether or not the notification of the cause of the reception processing retry is given by voice. This includes the selection of, and the selection of resetting or holding time processing. The viewer can also select or set the time until timeout. When the viewer inputs an instruction via the operation unit 18, the content of the selection is displayed on the display unit 20 described later.

FIGS. 2 (a) and 2 (b) show screens for function setting displayed on the display unit 20. FIG. Figure 2 (a) shows the display when the time-out time is set when reception is not possible and reception is stopped. “Shortest” is equivalent to holding the timeout process even if the retry is cancelled, and continuing the timeout process with the next and subsequent retries. In the case of “short”, “normal” or “long”, the timeout process is reset when the retry process is canceled, so the subsequent retry processes are started from the initial state. Figure 2 (b) shows the display when the viewer chooses whether to notify the receiving status by voice. Return to Figure 1.

Tuner unit 10, demodulator unit 12, and decoder unit 14 are digital terrestrial television signals. The radio signal of the vision broadcast is received, and the information contained in the radio signal is reproduced by continuously executing a multi-step process on the received radio signal. The tuner unit 10 extracts the channel set in the operation unit 18 from the radio signal received via the antenna 22. In order to extract a channel, the 1_ 1_ part 24 is set to a frequency that can extract the desired channel. The 1_ 1 _ portion 24 may be configured according to a known technique, so the description is omitted here. When the tuner unit 10 can extract a desired channel from the radio signal, that is, when the PLL unit 24 is locked, the PLL lock detection unit 26 detects this. The tuner unit 10 performs frequency conversion from radio frequency to baseband for the extracted channel, and outputs a baseband signal.

The demodulation unit 12 demodulates the baseband signal from the tuner unit 10. A G C 2 8 amplifies the baseband signal so that the amplitude or power of the baseband signal approaches a constant value. The amplification factor at that time is automatically determined by A G C 2 8 based on the input baseband signal. The AGC lock detection unit 30 detects when the amplification factor is determined, that is, when the AGC 28 is locked. Baseband signals are intended for any of several modes. The plural types are F F T (F ast F o f r i r t r as f o r m) point types, and 2 k mode, 4 k mode, 8 k mode are defined.

The mode identifying unit 32 identifies which mode the baseband signal corresponds to. Although the specific method may be arbitrary, for example, the mode identification unit 32 performs correlation processing corresponding to each of 2 k mode, 4 k mode, and 8 k mode, and corresponds to the maximum correlation value. Choose a mode. The mode identification detection unit 34 detects that the mode is selected in the mode identification unit 32. The frame synchronization unit 36 performs frame synchronization on the baseband signal whose mode is identified. In addition, the frame synchronization detection unit 38 detects that the frame synchronization has been performed in the frame synchronization unit 36. The detailed explanation is omitted In addition to the AGC 28, the mode identification unit 32, and the frame synchronization unit 36, the power demodulation unit 12 is provided with a function to execute FFT, a function to execute demodulation, and the like.

The decoding unit 14 performs decoding on the signal from the demodulation unit 12.

For example, when the signal from the demodulator 12 corresponds to the MP EG, the decoder 14 decodes the MP EG. The decoding start detection unit 40 detects that decoding has been started. The decoding unit 14 also stores the decoded information in a buffer (not shown) without immediately outputting the decoded information, and when the buffer is filled, that is, when the buffer becomes full, the decoded information is decoded. Output from section 14. The buffer information detection unit 42 detects that the buffer is full.

As described above, when a radio signal starts to be received by the receiving apparatus 100, the PLL unit 24, the AGC 28, the mode specifying unit 32, the frame synchronization unit 36, the decoding, and the buffer are sequentially performed in a plurality of stages. Processing of is started. In addition, 1_ 1 _ lock detection unit 26, AGC lock detection unit 30, mode identification detection unit 34, frame synchronization detection unit 38, decoding start detection unit 40, buffer information detection, corresponding to the above-described multiple stages of processing. The unit 42 outputs information indicating the processing status, that is, the information detected as described above. For example, the PLL lock detection unit 26, the AGC lock detection unit 30, the mode specification detection unit 34, the frame synchronization detection unit 38, the decode start detection unit 40, and the buffer information detection unit 42 are executed in the corresponding stages. When newly started, the information indicating the start of execution is output as the information indicating the processing status. In the case of the buffer information detection unit 42, the information indicating the start of the execution corresponds to the information indicating that the buffer is full.

In addition, the 1_ 1 _ lock detection unit 26, the AGC lock detection unit 30, the mode identification detection unit 34, the frame synchronization detection unit 38, the decoding start detection unit 40, and the buffer information detection unit 42 correspond to each other. If re-execution is performed in the stage process, that is, if retry is performed, the information indicating the re-execution is output as the information indicating the process status. The control unit 16 has a 1 — 1 _ lock detection unit 26, an AGC lock detection unit 30, a mode identification detection unit 34, a frame synchronization detection unit 38, a decoding start detection unit 40, and a buffer. The progress of the information detected by the information detection unit 42, that is, the progress of the display of the information in accordance with the progress of processing of plural stages in the tuner unit 10, the demodulation unit 12 and the decoding unit 14 Derive That is, the control unit 16 receives each information such as PLL lock, AGC lock, mode specification, frame synchronization detection, decoding start, video / listening.

Further, the control unit 16 is provided with a storage area, and the storage area contains information corresponding to a plurality of stages of processing, that is, the progress status until the display of the information is started. And a table in which are associated with each other are stored. In the following, the process is also called a receiving process, but we do not distinguish between the two. FIG. 3 shows the data structure of a table showing the relationship between the process and the degree of progress stored in the control unit 16. On the horizontal axis, “P L L lock”, “A G C lock”, “mode identification”,

The processes of “frame synchronization”, “decoding start” and “buffering end” are shown. The vertical axis indicates the progress of the reception process, and each process is associated with the progress. Also shown are the progress of the reception process and the estimated time to display. Return to Figure 1.

The control unit 16 refers to the stored table and derives the progress status until the display is started, based on the information on the received process. The derived progress status is output to the display unit 20. Here, the progress status corresponds to the progress time or estimated time shown in FIG. We will explain the process of deriving the progress situation in more detail. For example, when the mode identification detection unit 34 detects mode identification, the mode identification detection unit 34 outputs that effect to the control unit 16.

When the control unit 16 receives the information indicating that the mode is specified, the control unit 16 specifies the process in the previous stage of the process in which the execution is newly started. Here, AGC lock, which is a process of mode-specific pre-stage, is identified. Further, the control unit 16 detects the progress degree and the estimated time corresponding to the AGC lock while referring to the table of FIG. In addition, the control unit 16 measures the passage of time, that is, the estimated time Update your progress with the passage of time. Specifically, since the estimation time decreases with the passage of time, the control unit 16 increases the progress according to the table in FIG. The same process is performed when another process is started. By the above processing, the control unit 16 updates the progress status so that the processing of the previous stage is started.

The control unit 16 has a 1 — 1_ lock detection unit 26, an AGC lock detection unit 30, a mode specification detection unit 34, a frame synchronization detection unit 38, a decoding start detection unit 40, and a buffer. If the information detection unit 42 receives information that indicates re-execution, update of the progress status is stopped. This corresponds to stopping the decrease in estimated time and stopping the increase in progress. At this time, the control unit 16 causes the demodulation unit 12 to execute channel estimation analysis, C / N estimation, and received power measurement, and receives those results. The control unit 16 determines from this information what causes the reception process retry to occur. Note that this process is not performed for processes that are not related to radio wave conditions, such as waiting for PL lock.

Furthermore, the control unit 16 is provided with a timer, and when a retry occurs, the timer counts a period until a preset timeout. The control unit 16 displays the progress status up to the timer according to the timing result of the timer which has been started. Also, the time for notifying the viewer that a retry has occurred is preset by the viewer via the operation unit 18, and the timer clocking result exceeds the set time. In addition, the control unit 16 starts to display the progress status until time-out. Here, the timeout corresponds to stopping reception after a predetermined time has passed without detecting the reception process. Note that the predetermined time in this timeout determination is set by the viewer via the operation unit 18. Also, they do not have to be the same for each receive process. Note that the progress to time and the estimation of time are done in the same way as the derivation of progress until the display starts.

The control unit 16 executes the following process in relation to the process of retry and timeout. After a retry of reception processing occurs, the retry is canceled and When the communication processing proceeds to the next step, the control unit 16 resumes updating the display of the progress of the reception processing that has been stopped, resets the time-out processing counter, and also resets the display related to the timeout processing. Do. Alternatively, after the retry of the reception process occurs, if the retry is canceled and the reception process proceeds to the next step, the control unit 16 displays the progress of the reception process which has been stopped. While updating is resumed, the time processing counter is saved without being reset, and the display regarding the time out processing is also held. If a retry of reception processing occurs again, the control unit 16 continues the timeout processing continuously from the holding state. Selection of these processes is made through the screen shown in Figure 2 (a).

The display unit 20 displays the video reproduced by the decoding unit 14. The display unit 20 also displays the progress status derived by the control unit 16. Fig. 4 (a)-(e) shows the screen of the progress status displayed on the display unit 20. The pie chart on the left side of Fig. 4 (a) shows the progress of reception processing until the video is displayed, and an estimated value of the time until the video is displayed is displayed at the center of the pie chart. The pie chart on the right side of Fig. 4 (a) shows the progress of the reception process until it times out, and the time until the timeout is displayed at the center of the pie chart. Also, at the top of the screen, a comment on the reception status is displayed.

[0037] When the channel being broadcasted is well received, the screen transitions in the order of Fig. 4 (a), Fig. 4 (b) and Fig. 4 (c). That is, the display unit 20 displays the progress of reception processing until the video is displayed, while sequentially updating the display unit 20. Here, Fig. 4 (a) shows the screen receiving the channel being broadcast. Further, the display unit 20 displays the estimated time until the video is displayed on the display unit 20. If a retry of reception processing occurs and the progress of reception processing stagnates, the screen changes in the order of Fig. 4 (a) and Fig. 4 (d). That is, the display unit 20 stops updating the display of the progress of the reception process, and displays the progress of the time-out process on the display unit 20. Further, the display unit 20 displays the remaining time until the time-out on the display unit 20. In addition, the display unit 20 can receive Display the cause of the retry on the display unit 20. Here, Fig. 4 (d) shows a screen where a retry occurs and timeout processing is being performed.

After the retry of the reception process occurs, when the retry is canceled and the reception process proceeds to the next step, the screen transitions in the order of FIG. 4 (d) and FIG. 4 (b). That is, the display unit 20 resumes the update of the display of the progress of the reception processing which has been stopped, and stops the display regarding the time-out processing. If the retry continues to fail, the screen transitions in the order shown in Figure 4 (d) and Figure 4 (e). That is, the display unit 20 updates the graph indicating the time until the timeout and the progress, and finally displays the timeout state. Here, Fig. 4 (e) shows the screen when retry continues to fail in re-reception and the time-out condition is reached.

[0039] FIGS. 5 (a)-(d) show another screen of the progress status displayed on the display unit 20. FIG. Fig. 5 (a) shows the screen when reception is normal, as in Fig. 4 (a). Unlike the pie chart in Fig. 4 (a), in Fig. 5 (a), the bar graph shows the progress until the display is displayed, and the letters show the remaining time until the display is displayed. There is. Similarly to Fig. 4 (a), Fig. 5 (b) is also the screen when reception is normally performed. In Fig. 5 (b), the graph is not displayed, but the remaining time until the display is displayed by the character is displayed.

[0040] FIG. 5 (c) is a screen in the case where a retry is made, as in FIG. 4 (d). In Fig. 5 (c), in the upper bar graph, the progress until the display is stopped is displayed, and in the lower bar, the progress until the timeout is displayed. In addition, the remaining time until timeout is displayed by the character. Figure 5 (d) is also the screen when timeout has been made, as in Figure 4 (d). In Fig. 5 (d), the graph does not appear, but the remaining time until time is displayed by the character is displayed.

In terms of hardware, this configuration can be implemented by any computer's CPU, memory, and other LS I, and software can receive it loaded into memory. It is realized by a program with a communication function, but in this case the functional blocks realized by those cooperation are drawn. Therefore, it is understood by those skilled in the art that these functional blocks can be realized in various forms by hardware only, software only, or a combination thereof.

The operation of receiving apparatus 100 having the above configuration will be described. Figure 6 shows the tuner section

10 is a flowchart showing a reception procedure by 10, a demodulator 12 and a decoder 14. If the PL lock detection unit 26 does not detect the completion of the PL lock (S 10 Ν), the PL lock detection unit 26 waits until detection. When the PLL lock detection unit 26 detects the completion of the PLL lock (S 10 0), if the AGC lock detection unit 30 does not detect the completion of the AGC lock (N of S 12), The AGC lock detection unit 30 waits for detection. When the AGC lock detection unit 30 detects the completion of AGC lock (丫 in 32), if the mode identification detection unit 34 does not detect the completion of mode identification (N in S 14), the mode identification detection unit 34 waits for detection.

[0043] When the mode identification detection unit 34 detects the completion of mode identification (ie, in the case of 31 4), if the frame synchronization detection unit 38 does not detect the completion of frame synchronization (N in S16), frame synchronization detection is performed. The unit 38 waits for detection. When the frame synchronization detection unit 38 detects the completion of frame synchronization (Y in S 16), if the decoding start detection unit 40 does not detect the decoding start (N in S 18), the decoding start detection unit 40 Wait for detection. If the decoding start detection unit 40 detects decoding start (Y in S 18), the buffer information detection unit 42 detects that the buffer information detection unit 42 does not detect buffer full (1 × 1 in 320), Wait for detection. When the buffer information detection unit 42 detects the buffer full (丫 320), the display unit 20 starts to display an image (S22).

FIG. 7 is a flowchart showing a display procedure by the receiving device 100. P

LL lock detection unit 26, AGC lock detection unit 30, mode identification detection unit 34, frame synchronization detection unit 38, decoding start detection unit 40, buffer information detection unit 4 Of the two, if the target of processing detects a receiving process (3 4 0), the control unit 16 refers to the table and acquires the progress corresponding to the process of the previous stage (S 4 2). Also, the control unit 16 executes the progress to the video display and estimates the remaining time (S 4 4), and the display unit 20 displays the result (S 5 6).

[0045] On the other hand, if the reception process is not detected (3 40 1 \ 1), the control unit 16 analyzes the reception quality (S 4 6) and operates the retry counter for timeout. Let it (S 4 8). If time out (3 5 0), display unit 2 0 displays the result (S 5 6). Also, if it does not time out (N of S 50) and it does not start the retry display (1 of 35 2 1), it returns to step 40. In addition, when the display of the retry is to be started (3 of 5 2), the control unit 16 executes the progress of the retry process and estimates the remaining time (S 54), and the display unit 20 Display the result (S 5 6). If the whole process is not complete (N of S 5 8), return to step 40. On the other hand, if the whole process is completed (丫 3 5 8), the process is finished.

According to the embodiment of the present invention, since the progress status until the display of information is started is displayed according to the progress status of the multi-step processing, the progress latency corresponding to the actual processing is displayed. You can view the situation. In addition, the progress status corresponding to the actual processing can be displayed, which can reduce the viewer's stress. In addition, progress status can be derived from process detection and table reference, so that progress status display can be performed with simple processing. Also, by updating the progress status so that the previous processing starts when the processing newly starts execution, the progress status is updated with respect to the previous processing that has already ended. Progress status can be updated regardless of current processing status.

In addition, since the progress status is updated regardless of the current processing status, the progress status is stabilized without stopping the display immediately, even if the current processing is suspended. It is possible to realize the display to be updated. In addition, since progress status is not updated when a retry is made, progress status corresponding to actual processing can be displayed. In addition, the progress status until timeout is displayed when a retry is made, so the viewer can be notified of the waiting time. In addition, even if the waiting time becomes long, the viewer can display and provide the progress information on the current reception process and information that can predict what will occur in the future. It can reduce the stress of the viewer.

The present invention has been described above based on the embodiments. It will be understood by those skilled in the art that this embodiment is an exemplification, and that various modifications can be made to the combinations of the respective constituent elements and processing processes, and such modifications are also within the scope of the present invention. It is

In the present embodiment, the receiving apparatus 100 is assumed to receive a terrestrial digital television broadcast radio signal. However, the present invention is not limited to this. For example, the receiver 100 may receive a radio signal of digital radio broadcast. According to this variation, the present invention can be applied to various systems.

In the present embodiment, a PL lock, an AG lock and the like are defined as multi-step processing. However, the present invention is not limited to this, for example, other processes of the process described in the embodiment may be added as multi-step processes, or any of the processes described in the embodiment is It may be deleted. According to this modification, the degree of freedom in the design of the receiver 100 can be improved.

Industrial applicability

Claims

The scope of the claims

[1] A processing unit for receiving information from a wireless signal and continuously executing a plurality of steps of processing on the received wireless signal to reproduce information contained in the wireless signal, and information reproduced from the processing unit And a display unit to display the display unit, wherein the display unit displays the progress status until the display of the information is started according to the progress status of the plurality of stages of processing in the processing section. Receiver.

[2] The information processing apparatus further includes a storage unit storing a table in which each of the plurality of stages of processing in the processing unit is associated with the progress status until the display of information is started; Output information showing the status of processing from each of the processing,

The display unit derives the progress status until the display of information is started based on the information from the processing unit while referring to the table stored in the storage unit. The receiver according to 1.

[3] When the execution is newly started in any of a plurality of stages of processing, the processing unit outputs information indicating the start of execution as the information indicating the status of the process. ,

When the information from the processing unit is input, the display unit updates the progress status so as to start the process before the newly started process. Receiving device according to.

[4] When the processing unit is re-executed in any of the plurality of stages of processing, the processing unit outputs information indicating re-execution as the information indicating the processing status, and the display unit The receiving device according to claim 2 or 3, wherein updating of the progress status is stopped when information from the processing unit is input.

[5] The processing unit, when re-executed, starts a timer in which a time-out period is indicated,

The display unit is configured to, according to the contents of execution by the timer in the processing unit, The reception apparatus according to claim 4, wherein the progress status to the image display is displayed.

Receiving a wireless signal and continuously executing a plurality of steps of processing on the received wireless signal to reproduce information contained in the wireless signal, and according to the progress status of the plurality of steps of processing. Displaying the progress status until the display of information starts.

Step to display the reproduced information,

A receiving method comprising: