TWI384871B - Methods and systems for digital television signals management - Google Patents

Description

Digital television signal management method and system

The present invention relates to an electronic device, and more particularly to a method and system for managing a heterogeneous television signal source.

Digital set-top boxes are widely used to provide digital services for online program listings. Most of the time, the digital set-top box provides high-definition digital TV (HDTV) services.

However, the prior art digital set-top box is only suitable for one of the terrestrial digital video broadcasting system or the handheld digital video broadcasting system; the output cannot be selected to the internal display or the external display; and the electronic signal needs to be interrupted when the electronic device answers the incoming call. Receive and manage.

In view of this, it is necessary to provide a method and system for managing a television signal source to selectively receive a terrestrial video broadcast signal or a handheld video broadcast signal; alternatively, it can be applied to an internal or external display while maintaining an electronic device to answer an incoming call. The reception and management of TV signals to solve the above problems.

The present invention provides an embodiment of a digital television signal management method, which is implemented in an electronic device. The digital television signal management method includes the following steps. Alternatively, a plurality of first digit television signals or a plurality of second digit television signals are received, and an internal display or an external display is enabled to display a series of plural pictures corresponding to the received digital television signals.

The present invention also provides an embodiment of a digital television signal management method, which is implemented in an electronic device, and the digital television signal management method includes the following steps. Receive multiple digital TV signals. Converting the digital television signal into a plurality of output signals, and transmitting the output signal to the external display via the connecting device, and then starting the external display to display a plurality of consecutive pictures corresponding to the output signal. Receive incoming calls. And communicating with the remote electronic device when answering the above call without interrupting the reception of the digital television signal and the conversion and transmission of the output signal.

The present invention also provides an embodiment of a digital television signal management system, which is disposed in an electronic device. The digital television signal management system includes an antenna, a digital television receiving system, and a processor. A digital television receiving system is coupled to the antenna. The processor is coupled to the digital television receiving system for setting a digital television receiving system to receive a plurality of first digital television signals or a plurality of second digital television signals via an antenna and a digital television receiving system, and activate an internal display or The external display displays a series of complex pictures corresponding to the received digital television signals.

The present invention also provides an embodiment of a digital television signal management system, which is disposed in an electronic device. The digital television signal management system includes a first antenna, a second antenna, a connection device, a digital television receiving system, a communication system, and processing. Device. The digital television receiving system is coupled to the first antenna for receiving the plurality of digital television signals. The communication system is coupled to the second antenna for receiving an incoming call. The processor is coupled to the digital television receiving system for converting the digital television signal into a plurality of output signals, transmitting the output signal to the external display via the connecting device to display a plurality of pictures corresponding to the output signal, and contacting the remote electronic device when answering the incoming call The device does not interrupt the reception of digital television signals and the conversion and transmission of output signals.

The above-mentioned digital television signal management system and its signal management method can select to receive terrestrial image broadcast signals or hand-held image broadcast signals; can be selected for internal or external display; and can maintain the reception and management of television signals when the electronic device answers an incoming call. .

The Digital Video Broadcasting-Terrestrial (DVB-T) transmission system can use Orthogonal Frequency Division Multiplexing (OFDM) modulation and link channel coding (for example, coded orthogonal frequency division multiplexing (Coded). Orthogonal Frequency Division Multiplexing (COFDM)) is used to transmit a Moving Picture Experts Group (MPEG) stream. 1 is a schematic functional block diagram of an embodiment of a terrestrial digital video broadcast transmission system including an animation expert group source coding and multiplexing unit 110, and a ground channel adapter 120. The animation expert group source encoding and multiplexing unit 110 can multiplex the image, sound and data into an MPEG Program Stream (MPEG PS), and one or more program streams can be combined. Together, they become an animation expert group to stream. The animation expert group program stream can be MPEG-1, MPEG-2, MPEG-4, H.263 or H.264 or the like. An MPEG Transport Stream (MPEG TS) is an elementary stream that is transmitted and received by a digital television receiver. It is worth noting that two different transport streams can be transmitted simultaneously using a technique called "hierarchical transfer". For example, hierarchical transmission can transmit standard definition TV (SDTV) and high-definition television signals on the same carrier. Depending on the quality of the received signal, the digital TV receiver can choose to decode standard TV signals or high-definition TV signals.

The animation expert group transport stream can be represented as a fixed length data packet sequence (eg, 188 bit length). The multiplex conversion and energy disperser 1211a or 1211b can use energy dispersive techniques to reduce the correlation between bit sequences. The external encoder 1213a or 1213b is used for the first stage of transmission data protection. For example, Reed Soloman (RS) (204, 188) is used to correct up to 8 error bits in each 188-bit packet. Conventional interleaving is the use of external interleaver 1215a or 1215b to rearrange the transmitted data sequence. The internal encoder 1217a or 1217b is used for the second level of transmission data protection. For example, a punctured convolutional code may be used based on an original whirling code having a coding rate of 1/2 and having 64 states. In addition, the internal encoder 1217a or 1217b may allow the original convolutional code with a coding rate of 1/2 to achieve a perforation rate of 2/3, 3/4, 5/6, and 7/8. The internal interleaver 1221 rearranges the data sequence again to reduce the effects of burst errors. The mapper 1223 maps this sequence of digits to the fundamental frequency modulation sequence of the complex symbol, for example using Quadrature Phase-Shift Keying (QPSK), 16-positive 16-Quadrature Amplitude Modulation (16-QAM), 64-Quadrature Amplitude Modulation (64-QAM), non-uniform 16-QAM or non-single 64 - Techniques such as constellation diagrams for non-uniform amplitude modulation (non-uniform 64-QAM). The picture converter 1227 aggregates the above complex symbols into blocks of a fixed length (e.g., each block has 1512, 3024 or 6048 complex symbols). One frame has 68 blocks, and one superframe has 4 pictures. In order to simplify the reception of signals transmitted to the terrestrial wireless channel, additional signals can be inserted into each block. A pilot signal 1225 can be used for the equalization phase, and a Transmission Parameters Signaling (TPS) 1225 can be used to transmit parameters of the transmitted signal and uniquely identify the signal. The orthogonal frequency division multiplexing modulator 1229 modulates these block sequences using 2048, 4096, or 8192 carriers (i.e., 2k, 4k, or 8k modes). In order to reduce the complexity of the receiver, each orthogonal frequency division multiplexing block can be extended by inserting the guard interval inserter 1231, for example, copying the length of the tail portion at the beginning (that is, the cyclic prefix). The length of the guard interval may be 1/32, 1/16, 1/8, or 1/4 of the length of the original block. The digital/analog converter 1233 converts the digital signal into an analog signal and is finally modulated by the radio frequency front end 1235 at a radio frequency (VHF or UHF). The details of the terrestrial digital video broadcast transmission system can be based on the ESTI standard: EN 300 744 V1.5.1, Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for digital terrestrial television (November 2004).

Digital Video Broadcasting-Handheld (DVB-H) is a technical specification for broadcast services used by handheld receivers. 2 is a functional block diagram of one embodiment of a handheld digital video broadcast transmission system, including a handheld digital video broadcast decoder 210, a multiplex unit 230, and a terrestrial digital video broadcast code and modulator 250. Handheld digital video broadcasting, as a transmission standard, standardizes the physical layer and the lowest layer protocol components. Handheld digital video broadcasting systems use a power saving mode based on time multiplex transmission of different services, such as television programs. The time cutting module 215 performs time cutting to achieve a large amount of battery power saving effect. In handheld digital video broadcasting systems, the multiplex of services is performed in a purely time-multiplexed manner. As a result, the data of a particular service will not be transmitted continuously, but will be transmitted intermittently in a tight periodic burst.

Figure 3 is a schematic diagram of an embodiment of a data stream (also referred to as a handheld digital video broadcast stream, DVB-H TS) including a time division service. A quarter channel 310 of the 13.27 Mbit/s terrestrial digital video broadcast channel is assigned to the handheld digital video broadcasting service, while the remaining channels 320 to 340 are shared by the ordinary terrestrial digital video broadcasting service. This example shows that it is feasible to simultaneously transmit terrestrial digital video broadcast data and handheld digital video broadcast data in the same network. In addition, if the digital TV receiver moves from one cellular cell to another using only one receiving unit, time cutting enables soft handover.

Unlike digital terrestrial video broadcasting systems, handheld digital video broadcasting systems are based on Internet Protocol (IP). The baseband interface of a handheld digital video broadcasting system is a network protocol interface. This interface allows handheld digital video broadcasting systems to be combined with other network protocol-based networks. Network protocol data is embedded in the transport stream using Multi-Protocol Encapsulation (MPE). An additional layer of Forward Error Correction (FEC) data, such as a Multi-Protocol Encapsulation-Forward Error Correction (MPE-FEC) layer, can be added to the multi-protocol encapsulation level. The multi-protocol encapsulation-forward error corrector 211 is located at the link layer, and performs multi-protocol encapsulation-forward error correction processing before the multi-protocol encapsulator 213 does not perform the multi-protocol encapsulation of the network protocol input stream. The multi-protocol encapsulation-forward error corrector 211, the multi-collate encapsulator 213, and the time division module 215 together form a handheld digital video broadcast decoder 210 that includes the basic functions of a handheld digital video broadcast system. The network protocol input stream, as an independent basic stream, is multiplexed according to the time division method. The multi-protocol encapsulation-forward error correction protection mechanism is calculated separately for each independent basic stream. The network protocol packet is then encapsulated and embedded into the transport stream.

The multi-protocol encapsulation-forward error correction protection mechanism may include a Reed-Solomon code combined with a block interleaver. The multi-protocol encapsulation-forward error corrector 211 can create a specific picture architecture, forward error correction picture, and integrate the input data of the handheld digital video broadcast decoder 210.

Figure 4 is a schematic diagram of an embodiment of a forward error correction picture comprising a maximum of 1024 columns and a fixed number of 255 rows. Each picture unit corresponds to one bit, and the maximum picture capacity is about 2M bits. The forward error correction screen can be divided into two parts, the application data sheet is on the left side (line 191) and the Reed-Solomon data sheet is on the right side (line 64). The application data sheet fills in the network contract packets of the service to be protected. After applying the Reed Solomon (255,191) code to each column of application data, the Reed-Solomon data sheet contains the parity byte of the Reed-Solomon code. After encoding, the network protocol packet is read from the application data table and encapsulated into the network protocol segment in a multi-protocol encapsulation method. The application data for each line is followed by the co-located data from the Reed-Solomon data sheet and packaged into different forward error correction segments. Multi-protocol encapsulation - forward error correction is directly related to time division. Both techniques apply to the basic stream hierarchy, and a time-segmented burst may include the content of one or more forward error correction pictures. The details of the handheld digital video broadcast transmission system can be based on the ESTI standard: EN 302 304 V1.1.1, Digital Video Broadcasting (DVB); Transmission System for Handheld Terminals (DVB-H) (November 2004).

FIG. 5 is a schematic diagram of an embodiment of a computer 500 including an internal display 510 and a host 530. The host 530 is typically equipped with at least one port, such as port 531 or 533. The wireless transceiver 535 can be coupled to an electronic device, such as a mobile phone, a Personal Digital Assistant (PDA), and the like. The ports can be either serial or parallel. Sequences, such as RS232, RS242, Serial Advanced Technology Attachment (SATA), Universal Serial Bus (USB), IEEE 1394 or Universal Asynchronous Receiver Transmitter (UART), etc. A computer interface that can input or output data in one bit at a time. Parallel ports, such as Integrated Drive Electronics (IDE), Small Computer System Interface (SCSI), IEEE 1284, etc., are a way to parallel data (ie, more than one) Line transfer) The computer interface for input or output. Parallel 传输 transmits one-bit data on each line, so the available transmission rate is more than a multiple of that for a single transmission line (compared to the sequence 埠). A number of additional transmission lines, usually parallel, are used as control signal lines to indicate that the data is ready to begin transmission or reception. A wireless transceiver, such as an 802.x, Bluetooth, or Infrared Data Association (IrDA) transceiver, is a computer interface that can transmit data by radio frequency or infrared signals. Moreover, those skilled in the art will recognize that some embodiments of computer 500 can be configured for other computer systems, including handheld devices, multi-processor systems, microprocessor systems, or programmable consumer electronics devices, notebook computers, and the like. .

FIG. 6a is a schematic diagram of an embodiment of the electronic device 600 coupled to the host. The electronic device 600 is coupled to the host 530 via a connector 650, a connection line 651, and a port 531. A preferred embodiment of electronic device 600 is to draw power to host 530 via a universal serial port connector, a universal serial port, and a universal serial port. FIG. 6b is a schematic diagram of an electronic device 600 coupled to the host 530 via a wireless transceiver 535.

When the electronic device 600 is coupled to the host 530 via the port 531 or the wireless transceiver 535, the host 530 can be discriminated by the Universal Plug and Play (UPnP) protocol proposed by the Universal Plug and Play Forum. The electronic device 600 is set as an external television signal receiver. Therefore, the host 530 can receive the heterogeneous television signal, for example, receiving the terrestrial digital video broadcast signal, the handheld digital video broadcast signal, and the like via the electronic device 600.

FIG. 7 is a schematic diagram of an embodiment of a hardware environment that can be implemented by the mobile electronic device 700, which mainly includes a communication system 7301, a microphone 7302, a speaker 7303, dual antennas 7304 and 7323, a processor 7305, a memory 7306, and a connection control. The device 7310, the video decoder 7312, the storage medium 7313, the display device 7314, the digital television receiving system 7321, and the keyboard controller 7330. When the communication system 7301 is connected to the cellular network, other remote mobile electronic devices can be connected via the antenna 7304. The cellular network includes Global System For Mobile communications (GSM), General Packet Radio Service (GPRS), and Enhanced Data Rates for Global Evolution (EDGE). ), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), or Circuit Switched Data (CSD), etc. Wait. The processor 7305 controls the digital television receiving system 7321 to selectively receive the terrestrial digital video broadcast signal or the handheld digital video broadcast signal via the antenna 7323 according to the relevant setting parameters. The processor 7305 can periodically issue a polling request to the communication system 7301 to obtain a message indicating whether an incoming call is received when receiving the ground or holding the digital video broadcast signal. The processor 7305 can use a multi-tasking environment to perform two or more software tasks, and when detecting that an incoming call from the remote mobile electronic device has been received, access the remote mobile electronic device via the communication system 7301, respectively, and via the digital The television receiving system 7321 receives the television signal. Thus, the mobile electronic device 700 can simultaneously contact the remote mobile electronic device via the communication system 7301 and operate as an external digital television receiver while answering the incoming call. The processor 7305 is connected to the communication system 7301, the digital television receiving system 7321, the memory 7306, the connection controller 7310, the video decoder 7312, the storage medium 7313, the display device 7314, and the keyboard controller 7330 via various bus bar architectures.

Figure 8 is a block diagram of an embodiment of a digital television receiving system 7321, including a terrestrial digital video broadcast demodulator (DVB-T demodulator) 8100, a terrestrial/handheld digital video broadcast demultiplexer (DVB-T/ DVB-H demultiplexer 8300, and handheld digital video broadcast network protocol decapsulator (DVB-H IP decapsulator) 8500. The terrestrial digital video broadcast demodulator 8100 converts the received radio frequency (VHF, UHF) to the fundamental frequency via the radio frequency front end, and then converts it to the digital signal by using an analog/digital converter. The baseband digital signal must use the internal time and frequency synchronization module to search for the starting point of the discrimination picture and the block. Then remove the loop prefix from the guard interval. The internal quadrature crossover multiplex demodulation module demodulates the block sequence using 2048, 4096, or 8192 carrier modulation (2k, 4k, or 8k modes). The internal frequency equalization module equalizes the received signal using the pilot signal (eg, signal 1125 in Figure 1). The fundamental frequency modulated reticular symbol sequence is reduced by an internal de-mapper, for example, using fourth-order phase shift keying modulation, 16-quadrature amplitude modulation, and 64-quadrature amplitude modulation. Techniques such as non-single 16-quadrature amplitude modulation or constellation diagrams that are not a single 64-quadrature amplitude modulation. The result of the de-interlacing undergoes internal de-interlacing, internal decoding, external de-interlacing, external decoding, and multiplex conversion. The above operations respectively correspond to an internal interleaver (for example, the first image element 1211), an internal encoder (for example, the first image element 1217a or 1217b), an external interleaver (for example, the first image element 1215a or 1215b), and an external encoder (for example, 1 Figure element 1213a or 1213b), and the reverse operation of the multiplex conversion with an energy disperser (e.g., Figure 1 element 1211a or 1211b) to obtain the original Animation Expert Group Transport Stream (MPEG TS).

When the digital television receiving system 7321 is configured to receive terrestrial digital video broadcast signals, the operation of the terrestrial digital video broadcast demultiplexer 8300 is opposite to the operation of the animation expert group source code and multiplex unit (eg, element 110 of FIG. 1). Animated expert group program stream (MPEG PS) can be obtained from the animation expert group transfer stream. When the digital television receiving system 7321 is configured to receive the handheld digital video broadcast signal, the handheld digital video broadcast demultiplexer 8300 is configured to synchronize the plurality of bursts of the handheld digital video broadcast signal; however, the handheld digital video broadcast transmission is obtained. During the interval between streaming (DVB-H TS) or forward error correction pictures, the handheld digital video broadcast demultiplexer 8300 switches to the power saving mode. When the forward error correction picture is obtained, the handheld digital video broadcast demultiplexer 8300 further performs forward error correction decoding to obtain the handheld digital video broadcast transmission stream. The handheld digital video broadcast network protocol decapsulator 8500 then obtains an Internet Protocol packet (IP packet) from the handheld digital video broadcast transmission stream, which includes the original animation expert group program stream, such as video, sound, and / or data stream.

A display device (for example, element 7314 of FIG. 7), such as a Color Super-Twisted Nomadic (CSTN) display, a Thin Film Transistor-Liquid Crystal Display (TFT-LCD) display, An Organic Light-Emitting Diode (OLED) display or the like can display a plurality of human-machine interfaces to facilitate parameter setting of a digital television receiver. When the keyboard controller (eg, element 7330 of FIG. 7) detects that a hard key on the keyboard (eg, 7331 of FIG. 7) is pressed, the corresponding keyboard stroke event will trigger and execute the associated software. The instructions are to set a particular hardware circuit (e.g., at least elements 7312 and 7310 of Figure 7, and elements 8100, 8300, and 8500 of Figure 8).

Figure 9a is a schematic diagram of an embodiment of a human interface of a television source selection directory 910, including two directory options 911 and 913 and two soft keys 915 and 917. The directory options 911 and 913 display the words "Ground Digital Video Broadcasting" and "Handheld Digital Video Broadcasting", respectively. This means that the selection of the reception of the handheld or terrestrial digital video broadcast signal is operated by the television signal menu 910. Figure 9b is a schematic diagram of an embodiment of a human interface of the output device selection directory 930, including two directory options 931 and 933 and two soft keys 935 and 937. The directory options 931 and 933 display the characters "internal display" and "external display", respectively. This means that the animation expert group program stream or network protocol packet carried by the handheld or terrestrial digital video broadcast signal can be selected to be output to the internal display (such as component 7314 of FIG. 7) by operating the television signal directory 930. Or output to an external display via a connection controller and a connection device (such as elements 7310 and 7311 of FIG. 7). The connection device can be a serial port, a parallel port, or a wireless transceiver. Figure 9c is a schematic diagram of an embodiment of a human interface of the output data type selection directory 950, including two directory options 951 and 953 and two soft keys 955 and 957. Directory options 951 and 953 display the text "Network Protocol Packet" and "Animation Expert Group Program Stream", respectively. This means that the selection of a network protocol packet or an animation expert group program stream transmitted to the external display via the connection controller and the connection device is operated by the output data type directory 950. These setting parameters can be stored in memory (e.g., element 7306 of Figure 7) or a storage medium (e.g., element 7313 of Figure 7) for further reference.

The context of several setting parameters for a digital television receiver is provided below. Figure 10a is a schematic diagram of the data transmission process set by the first scenario. When the set parameters indicate that the received signal is a terrestrial digital video broadcast signal (DVB-T) and an animated expert group program stream (MPEG PS) carried by the terrestrial digital video broadcast signal is to be output to the local display, the terrestrial digital video broadcast The demodulator 8100 is first enabled to receive terrestrial digital video broadcast signals for animated expert group transport stream (MPEG TS). The terrestrial digital video broadcast demultiplexer 8300 is then enabled to transmit animated expert group program stream (MPEG PS) from the animation expert group to stream and transmit the animation expert group program stream to the image decoding. 7312. The video decoder 7312 decodes the animation expert group program stream to obtain a series of pictures. Finally, these pictures are successively displayed on the display device 7314.

Figure 10b is a schematic diagram of the data transmission process set by the second scenario. When the set parameters indicate that the received signal is a handheld digital video broadcast signal (DVB-H) and an animation expert group program stream (MPEG PS) carried by the handheld digital video broadcast signal is to be output to the local display, the terrestrial digital video broadcast The demodulator 8100 is first enabled to receive a handheld digital video broadcast signal for an Animated Expert Group Transport Stream (MPEG TS). The handheld digital video broadcast demultiplexer 8300 is then enabled to obtain a handheld digital video broadcast transport stream (DVB-H TS) from the animation expert group transport stream and to stream the handheld digital video broadcast transport stream to Handheld digital video broadcast network protocol decapsulator 8500. The handheld digital video broadcast network protocol decapsulator 8500 retrieves network protocol packets from the handheld digital video broadcast transport stream and transmits the network protocol packets to the processor 7305. An associated application within processor 7305 is executed to obtain an animation expert group program stream (MPEG PS) from these network protocol packets, and the animation expert group program stream is transmitted to video decoder 7312. The video decoder 7312 decodes the animation expert group program stream to obtain a series of pictures. Finally, these pictures will be displayed successively on the display device 7314.

Figure 10c is a schematic diagram of the data transmission process set by the third scenario. When the set parameters indicate that the received signal is a terrestrial digital video broadcast signal (DVB-T) and an animated expert group program stream (MPEG PS) carried by the terrestrial digital video broadcast signal is to be output to an external display, the terrestrial digital video broadcast solution The modulator 8100 is first enabled to receive terrestrial digital video broadcast signals for animated expert group transport stream (MPEG TS). The terrestrial digital video broadcast demultiplexer 8300 is then enabled to transmit the animation expert group program stream (MPEG PS) from the animation expert group to stream and transmit the animation expert group program stream to the successive control. 7310. The serial controller 7310 transmits the animation expert group program stream to the external electronic device via the connection device 7311, such as a notebook computer, a personal computer, a personal digital assistant (PDA), a portable multimedia player (PMP), etc. Wait. The external electronic device then decodes the animation expert group program stream into a series of pictures and displays the decoded picture on its display.

Figure 10d is a schematic diagram of the data transmission process set by the fourth scenario. When the set parameter indicates that the received signal is a hand-held digital video broadcast signal (DVB-H) and the network protocol packet carried by the handheld digital video broadcast signal is to be output to the external display, the terrestrial digital video broadcast demodulator 8100 is first enabled. It is used to receive a handheld digital video broadcast signal to obtain an animation expert group transmission stream (MPEG TS). The handheld digital video broadcast demultiplexer 8300 is then enabled to obtain a handheld digital video broadcast transport stream (DVB-H TS) from the animation expert group transport stream and to transmit the handheld digital video broadcast transport stream to Handheld Digital Video Broadcasting Network Protocol (DVB-H IP) Decapsulator 8500. The handheld digital video broadcast network protocol decapsulator 8500 retrieves network protocol packets (IP packets) from the handheld digital video broadcast transmission stream and transmits the network protocol packets to the connection controller 7310. The serial controller 7310 transmits the network protocol packet to an external electronic device such as a notebook computer, a personal computer, a personal digital assistant (PDA), a portable multimedia player (PMP), and the like via the connection device 7311. The external electronic device then obtains an animation expert group program stream (MPEG PS) from the network protocol packet, and then decodes a series of pictures from which the pictures are displayed on the display.

Figure 10e is a schematic diagram of the data transmission process set by the fifth scenario. When the set parameter indicates that the received signal is a handheld digital video broadcast signal (DVB-H) and an animation expert group program stream (MPEG PS) carried by the handheld digital video broadcast signal is to be output to an external display, the ground digital video broadcast solution The adjuster 8100 is configured to receive a handheld digital video broadcast signal to obtain an animation expert group transport stream (MPEG TS). The handheld digital video broadcast multiplexer 8300 is used to transmit a handheld digital video broadcast transmission stream (DVB-H TS) from an animation expert group to stream and transmit the handheld digital video broadcast transmission stream to a handheld digital video broadcast. Network Protocol (DVB-H IP) Decapsulator 8500. The handheld digital video broadcast network protocol decapsulator 8500 retrieves network protocol packets (IP packets) from the handheld digital video broadcast transmission stream and transmits the network protocol packets to the processor 7305. The related application executing in the processor 7305 obtains an animation expert group program stream (MPEG PS) from the network protocol packets, and transmits the animation expert group program stream to the connection controller 7310. The serial controller 7310 transmits the animation expert group program stream to the external electronic device via the connection device 7311, such as a notebook computer, a personal computer, a personal digital assistant (PDA), a portable multimedia player (PMP), and the like. The external electronic device then obtains an animation expert group program stream (MPEG PS) from the network protocol packet, decodes a series of pictures therefrom, and displays the pictures on its display.

A method of digital television signal management, or a portion or portion thereof, may be encoded in a program (such as a script) embedded in a tangible medium such as a floppy disk, optical disk, hard disk, or other machine readable storage medium. Form presentation. Among them, when these codes are loaded and executed on a machine (such as a computer, a DVD burner, etc.), these machines become devices for implementing the present invention. The methods disclosed above may also be embedded in code transmitted to certain transmission media (e.g., wires, cables, fibers, or other types of transmissions). Among them, when these codes are loaded and executed on a machine (such as a computer, a mobile phone, etc.), these machines become devices for implementing the present invention. When implemented in a general purpose processor, the combination of code and processor provides a unique means of operating similar to a particular logic circuit.

While the present invention has been described above in terms of several embodiments, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

110. . . Animation expert group source coding and multiplex unit

120. . . Ground channel adapter

1211a, 1211b. . . Multiplex conversion and energy disperser

1213a, 1213b. . . External encoder

1217a, 1217b. . . Internal encoder

1215a, 1215b. . . Internal interleaver

1221. . . External interleaver

1223. . . Imager

1227. . . Picture converter

1225. . . Pilot signal and transmission parameter signal

1229. . . Orthogonal frequency division multiplexing modulator

1231. . . Guard interval inserter

1233. . . Digital/analog converter

1235. . . RF front end

210. . . Handheld digital video broadcast decoder

211. . . Multiple protocol package - forward error corrector

213. . . Multiple agreement wrapper

215. . . Time cutting module

230. . . Multiplex unit

250. . . Ground digital video broadcast coding and modulator

310, 320, 330, 340. . . Channel

500. . . computer

510. . . Internal display

530. . . Host

531, 533. . . Connection

535. . . Wireless transceiver

600. . . Electronic device

650. . . Connector

651. . . Cable

700. . . Mobile electronic device

7301. . . Communication system

7302. . . microphone

7303. . . horn

7304, 7323. . . antenna

7305. . . processor

7306. . . Memory

7310. . . Connection controller

7312. . . Video decoder

7313. . . Storage medium

7314. . . Internal display device

7321. . . Digital television receiving system

7330. . . Keyboard controller

7331. . . keyboard

7311. . . Connecting device

8100. . . Terrestrial digital video broadcast demodulator

8300. . . Ground/handheld digital image broadcast solution multiplexer

8500. . . Handheld digital video broadcast network protocol decapsulator

910, 930, 950. . . Select directory

911, 913, 931, 933, 951, 953. . . Directory option

915, 917, 935, 937, 955, 957. . . Soft key

Figure 1 is a schematic functional block diagram of an embodiment of a terrestrial digital video broadcast transmission system.

Figure 2 is a schematic functional block diagram of an embodiment of a handheld digital video broadcast transmission system.

Figure 3 is a schematic diagram of an embodiment of a data stream including a time division service.

Figure 4 is a schematic diagram of an embodiment of a forward error correction picture.

Figure 5 is a schematic diagram of an embodiment of a computer.

Figure 6a is a schematic diagram of an embodiment of an electronic device coupled to a host.

Figure 6b is a schematic diagram of another embodiment in which the electronic device is coupled to the host.

Figure 7 is a schematic illustration of an embodiment of a hardware environment for use in a mobile electronic device.

Figure 8 is a block diagram of an embodiment of a digital television receiving system.

Figure 9a is a schematic diagram of an embodiment of a human interface of a television source menu.

Figure 9b is a schematic diagram of an embodiment of a human machine interface of an output device menu.

Figure 9c is a schematic diagram of an embodiment of a human machine interface for outputting a data type menu.

Figure 10a-10e is a schematic diagram of an embodiment of a data transmission process set by different contexts.

700. . . Mobile electronic device

7301. . . Communication system

7302. . . microphone

7303. . . horn

7304, 7323. . . antenna

7305. . . processor

7306. . . Memory

7310. . . Connection controller

7312. . . Video decoder

7313. . . Storage medium

7314. . . Display device

7321. . . Digital television receiving system

7330. . . Keyboard controller

7331. . . keyboard

Claims (23)

A digital television signal management method is implemented in an electronic device, wherein the digital television signal management method comprises: selectively receiving a plurality of first digital television signals or a plurality of second digital television signals; enabling an internal display or an external display to display corresponding a series of plural pictures of the received digital television signal; providing a second parameter indicating that the received digital television signal is to be output to the internal display or output to the external display via a connection device; the second parameter indicating the received digital position When the television signal is output to the internal display, the received digital television signal is decoded to generate a series of complex pictures, and the screen is displayed on the internal display; the second parameter indicates that the received digital television signal is to be output to the external display. Converting the received digital television signal into a plurality of output signals, and transmitting the output signal to the external display via the connecting device, and then starting the external display to display a series of complex signals corresponding to the output signal a second parameter indicating that the received digital television signal is to be output to the external display, providing a third parameter indicating that the output signal is generated in a first format or a second format; and according to the third parameter, The output signal is generated in the first format or the second format. For example, the digital TV signal management party mentioned in item 1 of the patent application scope The method wherein the electronic device is a mobile phone. The digital television signal management method of claim 1, wherein the first digital television signal is a terrestrial digital video broadcast signal, and the second digital television signal is a handheld digital video broadcast signal. The digital television signal management method of claim 1, wherein the first and second digital television signals are selectively received according to a first parameter value set by one of the man-machine interfaces provided by the electronic device. The digital television signal management method according to claim 1, wherein the second parameter is set by a human machine interface provided by the electronic device. The digital television signal management method of claim 1, wherein the output signal encoded in the first format comprises an animation expert group transmission stream, and the output signal encoded in the second format is a complex network. Road packet. The digital television signal management method according to claim 1, wherein the second parameter and the third parameter are set by a human machine interface provided by the electronic device. A digital television signal management method is implemented in an electronic device. The digital television signal management method includes: receiving a plurality of digital television signals; converting the digital television signals into a plurality of output signals, and transmitting the output signals to an external display via a connecting device. And then starting the external display to display a plurality of consecutive pictures corresponding to the output signal; receiving an incoming call; Receiving the above-mentioned incoming call without interrupting the reception of the digital television signal and the conversion of the output signal and the transmission to the external display, communicating with a remote electronic device. The digital television signal management method according to claim 8, wherein the electronic device is a mobile phone. The digital television signal management method of claim 8, wherein the digital television signal is a terrestrial digital video broadcast signal or a handheld digital video broadcast signal. The digital television signal management method of claim 8, further comprising: periodically issuing a plurality of polling requests to obtain information, wherein the information indicates that the digital television signal is received, converted, and the output signal is transmitted. Whether the incoming call is received during the period of the external display; and the information indicates that the incoming call has been received and answered, simultaneously communicating with the remote electronic device in a multi-tasking environment, receiving the digital television signal, and converting The digital television signal is formed into the output signal, and the output signal is transmitted to the external display. A digital television signal management system is disposed in an electronic device, the digital television signal management system includes: an antenna; a digital television receiving system coupled to the antenna; and a processor coupled to the digital television receiving system For setting the above-mentioned digital television receiving system to pass the above antenna and the above digital electricity The receiving system selectively receives a plurality of first digital television signals or a plurality of second digital television signals, and activates an internal display or an external display to display a series of plural images corresponding to the received digital television signals, wherein: the first digit The television signal is a terrestrial digital video broadcast signal, and the second digital television signal is a handheld digital video broadcast signal; the digital television receiving system further includes a terrestrial digital video broadcast demodulator, a ground or handheld digital video broadcast demultiplexer And a digital image handheld network protocol decapsulator; the processor obtains an animation expert group transmission stream via the terrestrial digital video broadcast demodulator, and starts the terrestrial digit when receiving the terrestrial digital video broadcast signal The image broadcast demultiplexer obtains an animation expert group program stream including the above-mentioned picture from the animation expert group transmission stream; and the processor obtains the animation expert group via the ground digital image broadcast demodulator Streaming and receiving the above hand When the digital video broadcast signal is activated, the handheld digital video broadcast multiplexer is activated to synchronize the plurality of bursts of the handheld digital video broadcast signal, and switch to a power saving interval during a time interval of obtaining a handheld digital video broadcast transmission stream. And mode, and initiating the digital image handheld network protocol decapsulator to obtain a plurality of network protocol packets including the series of pictures obtained from the handheld digital video broadcast transmission stream. The digital television signal management system of claim 12, wherein the electronic device is a mobile phone. The digital television signal management system of claim 12, wherein the first and second digital television signals are selectively received according to a first parameter value set by the electronic device provided by the electronic device. The digital television signal management system of claim 12, further comprising an image decoder and a connection device coupled to the external display, wherein the processor provides a second parameter indicating the received digital television signal Outputting to the internal display or outputting the external display via the connecting device; when the second parameter indicates that the received digital television signal is to be output to the internal display, the processor decodes the received digital television by using the image decoder Signaling to generate a series of plural pictures and displaying the above picture on the internal display device; and the second parameter indicating that the received digital television signal is to be output to the external display, the processor converting the received digital television signal into a plurality of output signals And transmitting the output signal to the external display via the connecting device, and then starting the external display to display a series of multiple pictures corresponding to the output signal. The digital television signal management system of claim 15, wherein the second parameter is set according to one of the man-machine interfaces provided by the electronic device. The digital television signal management system according to claim 15, wherein the connecting device is a universal serial port connecting device, and the electronic device is coupled to the above via the universal serial port connecting device. An external electronic device of one of the external displays takes power. The digital television signal management system of claim 15, wherein the second parameter indicates that the received digital television signal is to be output to the external display, and a third parameter is provided to indicate the output signal in a first format. Or generating a second format, and generating the output signal in the first format or the second format according to the third parameter. The digital television signal management system of claim 18, wherein the output signal encoded in the first format comprises an animation expert group transmission stream, and the output signal encoded in the second format is plural Network packet. The digital television signal management system of claim 18, wherein the second parameter and the third parameter are set according to a human machine interface provided by the electronic device. A digital television signal management system is disposed in an electronic device. The digital television signal management system includes: a first antenna; a second antenna; a connecting device; and a digital television receiving system coupled to the first An antenna for receiving a plurality of digital television signals; a communication system coupled to the second antenna for receiving an incoming call; and a processor coupled to the digital television receiving system for converting The digital television signal is a plurality of output signals, and the output signal is transmitted to an external display via the connecting device; the external display is enabled to display a plurality of consecutive images corresponding to the output signal, and a remote electronic device is accessed when the incoming call is answered The reception of the above-mentioned digital television signals and the conversion and transmission of the above output signals are not interrupted. The digital television signal management system of claim 21, wherein the electronic device is a mobile phone. The digital television signal management system of claim 21, wherein the digital television signal is a terrestrial digital video broadcast signal or a handheld digital video broadcast signal.