JP2003111004A - Portable viewing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable viewing device by which a viewer can view interrupted part of a program unable to be viewed because the viewer is engaged in making a telephone speech. SOLUTION: The mobile viewing device starts processing of recording coded video/audio data of a program during viewing to an SDRAM 219 when a portable telephone section 231 receives an incoming call and starts making a speech during program viewing processing. When the speech is finished, the portable viewing device reads the coded video/audio data from the SDRAM 219 while continuing video recording processing and reproduces the program by chasing the video image at the point of speech start time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable viewing device capable of watching television.

[0002]

2. Description of the Related Art Conventionally, a portable television receiving device has been provided, and such a device receives a terrestrial analog broadcast by a built-in small tuner and projects a received image on a liquid crystal display panel. . In recent years, MPEG4 (Moving Picture)
By recording coded video data based on Experts Group 4) in a memory card and loading the memory card in a slot of a portable viewing device, the recorded video can be enjoyed even when out of the office. The coded video data based on MPEG4 can be obtained by passing a received video by a normal television broadcast or a video picked up by a handy camera through an MPEG4 encoder, or by downloading it using the Internet. .

[0003]

As described above, due to the sophistication of the video coding technology and the miniaturization of equipment, it is possible to easily enjoy the video on the go.
Furthermore, there is a demand for a portable viewing device that is easy to use.

In view of the above circumstances, it is an object of the present invention to provide a portable viewing device having excellent usability.

[0005]

In order to solve the above-mentioned problems, a portable viewing apparatus of the present invention has a tuner for receiving terrestrial digital broadcasting and acquiring encoded video / audio data, and an encoded video. -Means for storing audio data in a memory card or built-in memory, and decoding of coded video / audio data read from the memory card or built-in memory and coded video / audio data supplied from the tuner to display video on the display And a voice output unit, a telephone function unit, and encoded video / audio data of the program being viewed when an incoming call is made in the telephone function unit while viewing the program or when the user performs a call start operation. And means for recording in the built-in memory.

With the above arrangement, even if there is a portion of the program that is being watched that cannot be seen due to the telephone call, the recording processing in the internal memory is being executed for that portion. , It will be possible to watch later.

[0007] While the recording of the coded video / audio data in the built-in memory is continued automatically or after receiving a chase reproduction request from the user after the end of the call, the coded video / audio data of the viewed program is written from the built-in memory. Should be read to play the program.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG.
It will be described with reference to FIG.

As shown in FIGS. 1 and 2, a broadcast viewing system is constituted by the stationary peripheral device 1 and the portable viewing device 2 of this embodiment. In this system, the stationary peripheral device 1 receives an analog broadcast, and the encoded video / audio data obtained by encoding the received broadcast is inserted into a slot 101 into a memory card 3 (for example, CompactFlash card (trademark)). Or multimedia card (trademark)). Main unit 1 of stationary peripheral device 1
The a is designed to be vertically long, and the leg part 1b is at the bottom.
Has been provided to prevent falls. Further, the stationary peripheral device 1 is provided with a power button and operation buttons (play / pause, stop, feed) for viewing, but no operation buttons for channel selection. A housing recess 1c is formed on the front side of the main body 1a of the stationary peripheral device 1, and the portable viewing device 2 can be inserted and mounted in the housing recess 1c. In this mounted state, the portable viewing device 2 is adapted to be charged by the stationary peripheral device 1.

The portable viewing device 2 has a substantially rectangular shape and a flat shape and is driven by a battery. The portable viewing device 2 receives the terrestrial digital broadcast by the tuner 230, displays an image on the liquid crystal display panel 202, and outputs sound from the earphone 203. In addition, the encoded video / audio data is read from the memory card 3 inserted in the slot 201, the video is displayed on the liquid crystal display panel 202, and the audio is output from the earphone 203. A touch panel 211 is attached on the liquid crystal display panel 202, and a desired instruction can be given by operating the panel with a touch pen or the like. Operation buttons related to viewing (play / pause,
(Stop, feed, volume, etc.) are provided in the housing.

The circuit configurations of the stationary peripheral device 1 and the portable viewing device 2 will be described below in detail with reference to FIG.

First, the stationary peripheral device 1 will be described. The tuner 102 receives an analog broadcast and outputs this broadcast reception signal. The I / O (input / output) circuit 10 receives the tuning instruction (channel information) for receiving the activation instruction of the tuner 102 and arbitrary broadcasting.
3 and the system bus 104 from the CPU 110. The CPU 110 receives the tuning instruction information (specified channel information, specified time information, etc.) from the user, the system bus 104, the PCMCIA interface 105,
And from the memory card 3 via the slot 101. The switch 106 has an input unit for inputting the broadcast reception signal and an input unit for inputting an external signal, and selects one of the signals and supplies it to the A / D conversion circuit 107.

The A / D conversion circuit 107 converts an analog signal into a digital signal to convert it into MPEG4 (Moving).
The Picture Experts Group 4) encoder 108 is supplied. MPEG4 encoder 108
In accordance with MPEG4, for example, a background in a video or a person in the background is individually described as an object, shape information is added to handle each object of this arbitrary shape, and DCT processing and a motion vector similar to MPEG2 are added. A video packet is generated by performing processing and the like, and a bit stream in which this is continued is output. The voice is also subjected to predetermined encoding, and this voice encoded data is incorporated into the bit stream. SDRAM109 is MPE
It is used in the above processing of the G4 encoder 108.

The bit stream (encoded video / audio data) output from the MPEG4 encoder 108 is a system bus 104, a PCMCIA interface 105,
And stored in the memory card 3 via the slot 101.

Two sets of the slot 101 and the PCMCIA interface 105 are provided. In addition to the memory card 3, the PHS data card 4 and the like can be mounted in the slot 101.

The charging circuit 113 includes a circuit for converting an alternating current from a commercial power source into a direct current, and when the portable viewing device 2 is attached to the stationary peripheral device 1 as shown in FIG. Charging power is supplied to the portable viewing device 2 via the terminal portion.

The CPU 110 is the tuner 102 described above.
Operation control and storage of the output of the MPEG4 encoder 108 in the memory card 3 (recording process), data transmission / reception when the PHS data card 4 is attached to the slot 101, and control of each functional unit based on this data , F
Read / write control of the flash ROM 111 and the DRAM 112 is also performed.

Next, the portable viewing device 2 will be described.
The MPEG4 bit stream data (encoded video / audio data) stored in the memory card 3 is PCMC.
IA interface 220 and system bus 213
And is supplied to the MPEG4 decoder 204. Also,
M stored in the SDRAM 219 which is a built-in memory
The PEG4 bit stream data is sent to the system bus 21.
3 and is supplied to the MPEG4 decoder 204. Then, a tuner 230 for receiving the terrestrial digital broadcasting
Is an MPEG4 broadcast by this terrestrial digital broadcasting.
Bitstream data of the above, and gives it to the MPEG4 decoder 204, or the memory card 3 or SDRAM2.
It is also supplied to the system bus 213 for recording to 19. The MPEG4 decoder 204 decodes the bit stream data to obtain the quantized coefficient and the motion vector, and supplies the video data obtained by performing the inverse DCT transform and the motion compensation control based on the motion vector to the graphics controller 205. The graphics controller 205 performs processing such as color adjustment on video data (for example, R, G, B data). Further, the graphics controller 205 also performs processing of displaying on the liquid crystal display panel 202 characters and the like (operation buttons, menu screen, EPG screen based on program information acquired from terrestrial digital broadcasting, etc.) instructed to be output from the CPU 209. The audio decoder 206 receives the audio code data in the bit stream from the MPEG4 decoder 204 and decodes the audio code data to generate audio data. SDRAM 210 is MPEG4
It is used in the above processing of the decoder 204.

The LCD controller 207 drives the liquid crystal display panel 202 based on the video data supplied from the graphics controller 205. The D / A converter 208 receives the audio data output from the audio decoder 206, performs D / A conversion, and generates an analog signal of a right (R) sound and an analog signal of a left (L) sound to generate the earphone 203. Give to.

The operation information on the touch panel 211 is
Dedicated interface 212 and system bus 213
Is given to the CPU 209 via. The CPU 209 grasps the instruction content by the correspondence between the operation information and the display of the operation buttons and the like on the liquid crystal display panel 202, and executes necessary processing.

The main body key 214 corresponds to the above-mentioned operation buttons (play / pause, stop, forward) for viewing. Operation information for the main body key 214 is sent to the CP via the interface 215 and the system bus 213.
Given to U209. The CPU 209 executes necessary processing based on the operation information.

A communication block 216 and an interface (for example, Bluetooth (registered trademark)) 217 are provided to enable a wireless network. In addition, the FlashROM 218 and the SDRAM 219
Also prepare. The battery 221 is a secondary battery, which receives power from the stationary peripheral device 1 and stores it. Mobile phone section 2
31 is to be used for a normal telephone.

The CPU 209 performs processing for a wireless network, data transmission / reception when the PHS data card 4 is installed in the slot 201, control of each functional unit based on received data, FlashROM 218 and SDRAM 219.
Read / write control is also performed. Further, when the user designates a received program (channel and time designation) using the touch panel 211 or the like, a process of storing the information in the memory card 3 is performed.

The processing by the CPU 209 will be further described. By mounting the PHS data card 4 in the slot 201, it is possible to browse pages using e-mail or the Internet. Therefore, the portable viewing device can be used as a net terminal in addition to being used as a TV viewing device or a video reproducing device. Moreover, it is possible to make a call using the PHS data card 4, and in such a case, the mobile phone unit 231 can be omitted.

FIG. 4 is a flow chart showing the processing when a telephone call is received while watching a program. CPU209
Determines whether or not an incoming call has occurred at the mobile phone unit 231 during the program viewing process (step S1). When there is an incoming call, the incoming melody sounds (step S
2) It is determined whether a call start operation has been performed (step S3). When the call is started, it is determined whether or not the chase reproduction is in progress (step S4). If the chase reproduction is not in progress, the encoded video / audio data of the program being viewed is S
The process of recording in the DRAM 219 is started (step S
5). If the chasing playback is in progress, the recording process has already been executed, and only that playback is interrupted (step S1).
2), go to step S6. When it is determined in step S6 that the call is ended, for example, a message "Do you want to chase and play?" And "Yes" and "No" buttons are displayed on the liquid crystal display panel 202 (step S7). When the chase reproduction is selected by the user, the coded video / audio data is read from the SDRAM 219 and decoded to reproduce the program while continuing the process of recording the coded video / audio data of the program being viewed in the SDRAM 219. Is performed (step S9). When step S5 is passed, the reproduction is started from the time when the recording is started, and when step S12 is passed, the reproduction is started from the time when the reproduction is interrupted. On the other hand, when the user does not select the chase reproduction, the recording process is stopped, the encoded video / audio data from the tuner 230 is supplied to the MPEG4 decoder 204, and the normal broadcast viewing process is executed (step S10). . Then, it is determined whether or not the processing for ending the program viewing is performed (step S11). When the ending process is performed, the process ends.

As described above, even if there is a portion which is not seen in the program being watched due to the telephone call, the recording process to the SDRAM 219 is executed for that portion, and the portion cannot be seen after the call ends. You can watch the program afterwards from the open part.

In the above process, the recording in the internal memory is started when the call starts, but the recording may be started when the call arrives. Also, it was decided to ask the user whether to display the message and perform the chase playback. However, if the chase playback was set in advance, the chase playback process was automatically performed without displaying the above message. May be executed. Also,
The remaining amount of the built-in memory may be detected when recording is started, and a message such as "The chasing function cannot be executed" may be displayed when it is determined that the remaining amount is low.

Although not shown, the stationary peripheral device 1 and the communication block 2 provided in the portable viewing device 2 are also provided.
16 and an interface (for example, Bluetooth (registered trademark)) 217 and a communication block and an interface of the same standard are provided, and the stationary peripheral device 1 and the portable viewing device 2 are provided.
You may make it possible to establish a wireless network.
According to this, it is also possible to give tuning information from the portable viewing device 2 to the stationary peripheral device 1 via a wireless network.
In addition, such a wireless network enables the stationary peripheral device 1 to transmit the MPEG4 bitstream data to the portable viewing device 2. According to this, the portable viewing device 2 is currently broadcasting. You can watch the video of analog broadcasting in real time. Note that the stationary peripheral device 1 and the portable viewing device 2 may be connected by a wired network, and channel selection information and bit stream data may be transmitted in the same manner as above. Further, instead of sending the MPEG4 bit stream data from the stationary peripheral device 1 to the portable viewing device 2, a composite video signal (may be a component video signal) is sent from the stationary peripheral device 1 to an AV terminal (or,
You may make it output to the portable viewing-and-listening apparatus 2 via (S terminal, D terminal, etc.).

Broadcasting is viewed in real time with the portable viewing device 2 mounted in the housing recess 1c of the stationary peripheral device 1, and as shown in FIG.
In the case where the operation button of 1 is hidden by the stationary peripheral device 1, the operation button is arranged in the stationary peripheral device 1 in the same manner as the operation button, and portable viewing is performed on the stationary peripheral device 1 side. The device 2 may be operable. The operation information on the operation buttons of the stationary peripheral device 1 can be sent to the portable viewing device 2 side using a wireless network, a wired network, or a wired network. In addition, the stationary peripheral device 1 may be provided with a speaker, the sound of the received broadcast is output from the speaker of the stationary peripheral device 1, and the video is displayed on the liquid crystal display panel 20 of the portable viewing device 2.
It may be possible to adopt a mode in which it is displayed in 2.

[0030]

As described above, according to the present invention, even if there is a portion which is not seen in the program being watched due to a call by the built-in telephone, that portion is not recorded in the built-in memory. The effect that the program is being executed and the program can be watched after the end of the call by chasing from the part not seen above.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a mounting state of a portable viewing device and a stationary peripheral device according to an embodiment of the present invention.

FIG. 2 is an external perspective view of the portable viewing device according to the embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a portable viewing device and a stationary peripheral device according to an embodiment of the present invention.

FIG. 4 is a flow chart showing a chasing reproduction process when a telephone call is made while a program is being viewed by the portable viewing device according to the embodiment of the present invention.

[Explanation of symbols]

1 Stationary peripheral devices 102 tuner 108 MPEG4 encoder 113 charging circuit 2 Portable viewing device 202 liquid crystal display panel 204 MPEG4 decoder 219 SDRAM 230 Terrestrial digital tuner 231 Cell Phone Department 3 memory card 4 PHS data card

Continued front page    (72) Inventor Ichiro Kajitani             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Wataru Matsuoka             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. F-term (reference) 5C025 AA25 AA30 BA22 BA27 CA04                       CA18 DA01 DA06 DA10                 5C052 AA17 AB02 CC01 CC11 DD10                       EE03 EE08 GA03                 5C064 AC07 AC11 AC20 AD14

Claims (2)

[Claims] 1. A tuner for receiving terrestrial digital broadcasting to obtain coded video / audio data, and a coded video / audio
A means for storing audio data in a memory card or built-in memory, and decodes the encoded video / audio data read from the memory card or built-in memory and the encoded video / audio data supplied from the tuner and displays the video on the display. A means for outputting voice with, a telephone function unit,
A means for recording coded video / audio data of the program being watched in the built-in memory when an incoming call occurs in the telephone function unit while the program is being watched or when the user performs a call start operation. A portable viewing device characterized by the above. 2. The portable audiovisual device according to claim 1, wherein the encoded video / audio data is continuously recorded in the built-in memory automatically or after receiving a chase reproduction request from the user after the call ends. A portable viewing device characterized in that coded video / audio data of a viewed program is read from the built-in memory to play the program.