942results about "Broadcast receiving circuits" patented technology

An information distribution and processing system contains a remote site, a sender and a receiving apparatus. The remote site contains a first set of digital data. The sender delivers a second set of digital data to the receiving device. In one embodiment of the present invention, the receiving device contain a timing device for automatically receiving the second set of digital data at predetermined times. The second set of digital data contains a first set of displayable data, a second set of displayable data, at least one non-displayable symbol, and at least one linking reference associated with the second set of displayable data. If desired, a user can select the second set of displayable data. The associated linking reference is sent to the remote site. The associated linking reference is used by the remote site to search for the additional information, and returns the requested information to the user.

A vehicle overall interactive managing method is disclosed. Uplink information transmitted by way of an artificial satellite to a center includes emergency information and periodic information. Downlink information transmitted from the center via the artificial satellite to each vehicle includes audio and image. There is provided at a ground station a movable body overall information management system that is provided with databases storing various types of data and an analysis system. Mandatory automobile inspection information, user information, traffic and road information, safety information, and other types of information are distributed to each of information requiring organizations through this system.

Methods and systems for communicating with a plurality of communications networks are provided herein. Aspects of the system may comprise cellular processing circuitry that processes a plurality of cellular frequency band communications services, comprising at least one cellular voice service and at least one cellular data service. The cellular processing circuitry may comprise a plurality of cellular processing integrated circuits within a mobile terminal. Broadcast processing circuitry may processes VHF / UHF frequency band broadcast services in at least one single broadcast processing integrated circuit within the mobile terminal. One or more of the cellular processing integrated circuits may communicate with, and shares at least a single memory with, the single broadcast processing integrated circuit. The single memory may be coupled to one or more of the cellular processing integrated circuits and the single broadcast processing integrated circuit via a memory interface.

A data processing apparatus communicates data bits on a predetermined number of sub-carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol. The data processing apparatus comprises a parity interleaver operable to perform parity interleaving on Low Density Parity Check (LDPC) encoded data bits obtained by performing LDPC encoding according to a parity check matrix of an LDPC code including a parity matrix corresponding to parity bits of the LDPC code, the parity matrix having a stepwise structure, so that a parity bit of the LDPC encoded data bits is interleaved to a different parity bit position. A mapping unit maps the parity interleaved bits onto data symbols corresponding to modulation symbols of a modulation scheme of the OFDM sub-carrier signals. A symbol interleaver is arranged in operation to read-into a symbol interleaver memory the predetermined number of data symbols for mapping onto the OFDM sub-carrier signals, and to read-out of the interleaver memory the data symbols for the OFDM sub-carriers to effect the mapping, the read-out being in a different order than the read-in, the order being determined from a set of addresses, with the effect that the data symbols are interleaved on the sub-carrier signals. The set of addresses are generated by an address generator which has been optimised to interleave the data symbols on to the sub-carrier signals of the OFDM carrier signals for a given operating mode of the OFDM system, such as a 32K operating mode for DVB-T2 or DVB-C2.

A network-enabled audio device that provides a display device that allows the user to select playlists of music much like a jukebox is disclosed. The user can compose playlists from disk files, CD's, Internet streaming audio broadcasts, online music sites, and other audio sources. The user can also select a desired Web broadcast from a list of available Web broadcasts. In addition, the user can play standard audio CD's and MP3 encoded CD's and have access to local AM / FM stations. Further, the software, the user controls, and the display in the network-enabled audio device are operably configured and connected such that the user can listen to playlists that include CD's and other audio sources just as the user would choose a playlist in a jukebox. The user accesses a server site via a PC and the Internet. From the server site, the user obtains a list of the devices in his or her Internet Personal Audio Network (IPAN) and what songs are on those devices. The IPAN includes an IPAN server, an IPAN client, and IPAN software stored on the network-enabled audio device. Thus, the network-enabled audio device provides people who are or are not comfortable with computers a way of taking music from various sources and putting it into one place for listening pleasure. In one embodiment, the Personal Computer (PC) is used to compose the playlists, but the user is able to listen to playlists and other audio sources without using the PC.

A network-enabled audio device that provides a display device that allows the user to select playlists of music much like a jukebox is disclosed. The user can compose playlists from disk files, CD's, Internet streaming audio broadcasts, online music sites, and other audio sources. The user can also select a desired Web broadcast from a list of available Web broadcasts. In addition, the user can play standard audio CD's and MP3 encoded CD's and have access to local AM / FM stations. Further, the software, the user controls, and the display in the network-enabled audio device are operably configured and connected such that the user can listen to playlists that include CD's and other audio sources just as the user would choose a playlist in a jukebox. The user accesses a server site via a PC and the Internet. From the server site, the user obtains a list of the devices in his or her Internet Personal Audio Network (IPAN) and what songs are on those devices. The IPAN includes an IPAN server, an IPAN client, and IPAN software stored on the network-enabled audio device. Thus, the network-enabled audio device provides people who are or are not comfortable with computers a way of taking music from various sources and putting it into one place for listening pleasure. In one embodiment, the Personal Computer (PC) is used to compose the playlists, but the user is able to listen to playlists and other audio sources without using the PC.

A digital video decoding system receives packetized video data representing programs conveyed on a plurality of video channels. The system includes a plurality of buffers for storing encoded video data representing images of video programs conveyed on a corresponding plurality of video channels. An individual buffer, corresponding to an individual video channel, stores sufficient encoded video data to prevent an underflow condition following switching to decode a program conveyed on the individual video channel. A processor initiates switching to decode a program conveyed on a selected one of the plurality of video channels in response to a user channel selection input. A decoder decodes encoded video data received from one of the plurality of buffers corresponding to the program conveyed on the selected video channel as determined by switching initiated by the processor. The decoder also predicts a next channel to be selected by a user based on, (a) predetermined user channel and program preference criteria, (b) predetermined user channel navigation patterns, or (c) user data entry device sensory data.

A digital broadcast channel reception system and a portable terminal allow watching a digital broadcast on the terminal. In the examples, a receiver unit for receiving digital broadcasts transmits video data to a display unit, using its TX data manipulator, modulator, TX circuit, and antenna. The TX data manipulator manipulates the output from an OFDM demodulator into data to transmit from the TX circuit and appends error correction codes to the data. The modulator modulates the output from the TX data manipulator. A display unit for digital broadcast display receives video data transmitted from the receiver unit, using its antenna, TX / RX section, and modulator / demodulator. After error correction codes in the received signals are decoded by a TX / RX data manipulator, video data is extracted. After the video data is decoded by a MPEG4 decoder, a picture is output on the display.

In an RF communication system, aspects for cellular network and intelligent integrated broadcast television downlink with intelligent service control with feedback may comprise generating a request in a mobile terminal for media to be delivered to the mobile terminal. The mobile terminal may transmit the request via a cellular service. The mobile terminal may receive the requested media having a specified quality of service via a single integrated cellular and VHF / UHF baseband processing integrated circuit. The received requested media may be received from a cellular broadcast service, the cellular service and / or a VHF / UHF broadcast service. The mobile terminal may negotiate for an acceptable quality of service with a service provider that controls delivery of the media. The media may be delivered via at least one of the cellular broadcast service, the cellular service and the VHF / UHF broadcast service.

The present invention realizes electronic commerce by providing a reception section that receives product information and service information and a barcode formation section that forms a barcode based on the received information, displaying the barcode formed by the barcode formation section on a display section and allowing a barcode reader provided at a shop terminal, etc. to read this barcode.

The present invention realizes electronic commerce by providing a reception section that receives product information and service information and a barcode formation section that forms a barcode based on the received information, displaying the barcode formed by the barcode formation section on a display section and allowing a barcode reader provided at a shop terminal, etc. to read this barcode.

An interactive radio system is disclosed. The overall architecture of the interactive radio system includes a broadcast system for broadcasting digital information across a radio signal to web radio receiver units. An interactive broadcast reception system includes a general purpose computer having a processor, display, and storage and internet connection, a broadcast receiver to communicate with the general purpose computer and to decode digital subcarrier data formatted as a broadcast markup language document, and application software that runs on the processor of the computer and communicates with the broadcast receiver to control the operation of the broadcast receiver and to respond to broadcast markup language commands in said broadcast markup language document by connecting to an internet address referenced in said digital subcarrier data.

A system for sending multimedia data between a first High Definition Multimedia Interface (HDMI) component and a second HDMI component that is engaged with a displayer of multimedia data includes a first Digital Visual Interface (DVI) component receiving HDCP-encrypted multimedia data from the first HDMI component over a wire. A wireless transmitter sends data from the first DVI component to a wireless receiver, preferably at 60 GHz, and the receiver in turn sends the data to a second DVI component. Neither DVI component encrypts or decrypts data. The second DVI component sends the multimedia data to a second HDMI component for decryption and display on, e.g., an LCD or plasma display.

The present invention provides a system for a moving body which enables a user to know a receivable broadcast station at the current position in real time and to select smoothly a desired broadcast station in a receiver even in an unfamiliar area. This system includes a broadcast station data memory that stores the channel data of a receivable broadcast station for each area, and a main processing circuit which is responsive to the vehicle's current position sensed by a coordinate computing unit for referring to the channel data and for showing the channel data of a receivable broadcast station at the current position on a display.

A digital broadcasting receiving system and method, where the digital broadcasting receiving system includes: a demodulator receiving and demodulating a dual transmission stream including a turbo stream and a normal stream; an equalizer equalizing the demodulated dual transmission stream; a first processor restoring normal stream data from the equalized dual transmission stream; and a second processor restoring turbo stream data from the equalized dual transmission stream and eraser decoding the turbo stream data. Thus, the reception sensitivity of a transmission stream including a turbo stream can be improved.

Transmitting data in a digital video broadcasting for handheld (DVB-H) receiver comprises a transport stream (TS) demultiplexer adapted to extract internet protocol (IP) datagrams from TS data packets; a packet identifier (PID) filter adapted to extract the TS data packets based on the PIDs of the TS data packets; a Multi Protocol Encapsulation-Forward Error Correction (MPE-FEC) random access memory (RAM) unit operatively connected to the TS demultiplexer; a Reed-Solomon decoder operatively connected to the MPE-FEC RAM unit; an IP to TS encapsulator operatively connected to the MPE-FEC RAM unit; a TS multiplexer operatively connected to each of the PID filter and the IP to TS encapsulator, wherein the TS multiplexer is adapted to combine both DVB-Terrestrial (DVB-T) and DVB-H TS data packets into a single combined TS data packet; and a host interface operatively connected to the TS multiplexer.

A DTV receiver includes a tuner, an information detector, a demodulator, and a channel equalizer. The tuner receives a broadcast signal including valid data in which a known data sequence is periodically repeated. The information detector detects location information of the known data sequence and a coarse frequency offset value of the broadcast signal. The demodulator demodulates the broadcast signal by estimating a fine frequency offset value using the detected location information and by compensating a frequency offset of the broadcast signal using the course and fine frequency offset values. Finally, the channel equalizer compensates channel distortion of the demodulated signal using the detected location information.

A radio frequency front end for a television band receiver and spectrum sensor includes a first plurality of adaptive matching networks connected to a signal summer that combines signals received by the first plurality of antennas respectively connected to the first plurality of adaptive matching networks and outputs a combined signal to each of a second plurality of downconverter / tuners. The downconverter / tuners are respectively or collectively connected to an analog to digital converter that converts output of the second plurality of downconverter / tuners into at least one digital signal that is output to the television band receiver and spectrum sensor.

In a digital radio receiver, at least one receiver train demodulates signal from a transmitter to which the receiver is tuned. The signal includes two data streams, typically a program stream and an information stream. The processor separates the two data streams and typically applies the program data stream to an output unit such as a speaker. The processor analyses the information stream and, when appropriate, stores the information stream. The information stream can be used to provide program information or information of importance to the user. A second receiver train can be used by the radio to scan the signals from other transmitters. The information from the other transmitters can be used to identify possible alternatives to the present programming or to automatically apply different program material to the speaker.

A digital broadcasting receiver capable of receiving HD (High Definition) broadcasting, SD (Standard Definition) broadcasting and the like. In the digital broadcasting receiver, a digital broadcasting signal subjected to demodulation is separated / divided in a transport unit before being supplied to decoders. Data on a packet ID included in the digital broadcasting signal is outputted from the transport unit. An MPU determines HD broadcasting or SD broadcasting according to the data on the packet ID and when the MPU determines the SD broadcasting, it instructs the transport unit to have a set subchannel displayed and also instructs an OSD control unit to make an OSD of the subchannel.

In an RF communication system, aspects for supporting cellular or wireless network and broadcast utilizing an integrated single chip cellular and broadcast silicon solution may comprise receiving in a mobile terminal, a plurality of cellular frequency band communications services and VHF / UHF band broadcast services in a single baseband processor IC within a mobile terminal. Cellular information associated with the cellular frequency band communications service, and VHF / UHF broadcast information associated with the VHF / UHF broadcast service may be processed by a cellular processing module and a VHF / UHF broadcast processing module, respectively, integrated within a single integrated circuit within the mobile terminal. The cellular processing module and the VHF / UHF broadcast processing module within the mobile terminal may operate independently of each other to separately process the cellular information and the VHF / UHF broadcast information without exchanging related information.

A network-enabled audio device that provides a display device that allows the user to select playlists of music much like a jukebox is disclosed. The user can compose playlists from disk files, CD's, Internet streaming audio broadcasts, online music sites, and other audio sources. The user can also select a desired Web broadcast from a list of available Web broadcasts. In addition, the user can play standard audio CD's and MP3 encoded CD's and have access to local AM / FM stations. Further, the software, the user controls, and the display in the network-enabled audio device are operably configured and connected such that the user can listen to playlists that include CD's and other audio sources just as the user would choose a playlist in a jukebox. The user accesses a server site via a PC and the Internet. From the server site, the user obtains a list of the devices in his or her Internet Personal Audio Network (IPAN) and what songs are on those devices. The IPAN includes an IPAN server, an IPAN client, and IPAN software stored on the network-enabled audio device. Thus, the network-enabled audio device provides people who are or are not comfortable with computers a way of taking music from various sources and putting it into one place for listening pleasure. In one embodiment, the Personal Computer (PC) is used to compose the playlists, but the user is able to listen to playlists and other audio sources without using the PC.

A data processing apparatus communicates data bits on a predetermined number of sub-carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol. The data processing apparatus comprises a parity interleaver operable to perform parity interleaving on Low Density Parity Check (LDPC) encoded data bits obtained by performing LDPC encoding according to a parity check matrix of an LDPC code including a parity matrix corresponding to parity bits of the LDPC code, the parity matrix having a stepwise structure, so that a parity bit of the LDPC encoded data bits is interleaved to a different parity bit position. A mapping unit maps the parity interleaved bits onto data symbols corresponding to modulation symbols of a modulation scheme of the OFDM sub-carrier signals.

A method for processing a composite digital audio broadcast signal to mitigate intermittent interruptions in the reception of the digital audio broadcast signal, the method comprising the steps of separating an analog audio portion of the digital audio broadcast signal from a digital audio portion of the digital audio broadcast signal, detecting errors in the digital audio portion of the digital audio broadcast signal, adjusting the digital audio portion of the digital audio broadcast signal in response to errors in the digital audio portion of the digital audio broadcast signal to produce an adjusted digital audio portion, and blending the analog audio portion with the adjusted digital audio portion to produce an audio output. A receiver that performs the method is also included.

A method for processing a composite digital audio broadcast signal to mitigate intermittent interruptions in the reception of the digital audio broadcast signal, the method comprising the steps of separating an analog audio portion of the digital audio broadcast signal from a digital audio portion of the digital audio broadcast signal, detecting errors in the digital audio portion of the digital audio broadcast signal, adjusting the digital audio portion of the digital audio broadcast signal in response to errors in the digital audio portion of the digital audio broadcast signal to produce an adjusted digital audio portion, and blending the analog audio portion with the adjusted digital audio portion to produce an audio output. A receiver that performs the method is also included.

In a stream demultiplexing device, a synchronous clock signal is supplied to a header processing unit only when a header is being inputted and processed in the header processing unit, and supplied to a payload processing unit only when a payload is being inputted and processed in the payload processing unit. By such cutting off the synchronous clock signal supply to the header processing unit and the payload processing unit while they are not active, power consumption in the stream demultiplexing device is reduced.

A data processing apparatus communicates data bits on a predetermined number of sub-carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol. The data processing apparatus comprises a parity interleaver operable to perform parity interleaving on Low Density Parity Check (LDPC) encoded data bits obtained by performing LDPC encoding according to a parity check matrix of an LDPC code including a parity matrix corresponding to parity bits of the LDPC code, the parity matrix having a stepwise structure, so that a parity bit of the LDPC encoded data bits is interleaved to a different parity bit position. A mapping unit maps the parity interleaved bits onto data symbols corresponding to modulation symbols of a modulation scheme of the OFDM sub-carrier signals.

The present invention discloses a receiving system and a method of processing data to receiving and processing mobile service data. The receiving system may include a signal receiving unit, a demodulating unit, a data processor, and a middleware engine. The signal receiving unit receives a broadcasting signal, which includes IP packets, payload of the IP packets including a DSM-CC module data part and a DSM-CC header, the DSM-CC module data part including a plurality of DSM-CC objects, and the DSM-CC header including identification information for identifying the DSM-CC module. The demodulating unit demodulates the received broadcasting signal including IP packets. The data processor extracts a plurality of DSM-CC objects of a corresponding payload with reference to DSM-CC header information of the IP packets demodulated by the demodulating unit and configuring a DSM-CC module, which includes identification information and the extracted DSM-CC objects. The middleware engine provides a data broadcasting service by driving application corresponding to the DSM-CC module.

A receiver for broadcast signals, e.g. DAB, FM, DVB, and digital or analog short-wave RF broadcast signals according to the present invention includes a polyfunctional circuit (5) that can be switched into three modes and performs the digital frequency demodulation which is needed for the reception of a frequency modulated signal in a first mode A, a digital frequency adjustment of the receiver in case of the reception of a digital or analog modulated broadcast signal like DAB, DVB, DRM or AM in a second mode B and the digital frequency adjustment and the digital gain control of the receiver which is needed in case of the reception of a digitally modulated broadcast signal like DAB, DVB, DRM in a third mode C. Depending on the needed functionality not all of these modes need to be realized. Nevertheless, the same hardware will be used for different purposes although the circuit is realized with an optimized amount of hardware to realize an efficient receiver.