Abstract:
Received data is applied in units of blocks to an error correcting unit and a data holding unit. If the error correcting unit normally performs error correction, the output from the error correcting unit is stored in a frame buffer. If the error correcting unit does not normally perform error correction, the data in the data holding unit is stored in the frame buffer. In this manner the first error correction processing is performed. Bit data is sequentially read out in units of bits from each block stored in the frame buffer, subjected to the second error correction processing, and returned to the frame buffer. The third error correction processing is further performed for the data sequentially output in units of blocks from the frame buffer.
Abstract:
Received data is applied in units of blocks to an error correcting unit and a data holding unit. If the error correcting unit normally performs error correction, the output from the error correcting unit is stored in a frame buffer. If the error correcting unit does not normally perform error correction, the data in the data holding unit is stored in the frame buffer. In this manner the first error correction processing is performed. Bit data is sequentially read out in units of bits from each block stored in the frame buffer, subjected to the second error correction processing, and returned to the frame buffer. The third error correction processing is further performed for the data sequentially output in units of blocks from the frame buffer.
Abstract:
An FM broadcasting signal carrying multiplex character data transmitted from a radio broadcasting station is automatically preset in an FM receiving apparatus. An FM broadcasting signal is received, and a frequency information of the received FM broadcasting signal is temporarily memorized in a memory (20). It is judged whether a PLL lock signal is produced by a clock signal reproducing circuit (24) during a demodulation process of the FM broadcasting signal whose frequency information is memorized in the memory (20). When it is determined that the PLL lock signal is produced by the clock signal reproducing circuit (24), it is determined that the FM broadcasting signal carries multiplex character data, and the frequency information of said FM broadcasting signal is preset to the FM receiving apparatus.
Abstract:
Method and apparatus for transmitting an information signal (208) generate a plurality of block signals (221) on the basis of the information signal (208), generate a plurality of parity block signals (222) on the basis of the plural data block signals (221), generate a frame signal containing the plural data block signals (221) and the parity block signals (222), and send out the frame signal (406, 408, 409, 410, 411). Each of the data block signals (221) includes a first block synchronizing signal (BIC1) indicating the start of the data block signal, a data signal (209) containing the information signal (208) and a first parity signal (203) derived by encoding the data signal (209). Each of the parity block signals (222) incudes a second block synchronizing signal (BIC2) indicating the start of the parity block signal, a second parity signal (204) and a third parity signal (205). Bit signals located at same bit positions in the respective second parity signals are derived by encoding bit signals located at the same positions in the respective data signals. Bit signals located at same bit positions in the respective third parity signals are derived by encoding the bit signals located at the same bit positions in the respective first parity signals or alternatively the third parity signal (204) in each parity block signal (222) is derived by encoding the second parity signal (204) in each parity block signal (222).
Abstract:
본 고안은 공청용 FM 신호처리기에 관한 것으로, 다수의 FM 라디오 채널을 하나의 프로세스 내에서 처리하도록 하는 다채널 FM 신호처리기에 관한 것이다. 본 고안에 따른 FM 신호처리기는 88∼108MHz 대역 내의 모든 FM라디오 신호를 동시에 처리하기 위하여; 선형증폭기; 20MHz 대역을 처리할 수 있는 대역통과 필터; 신호를 재전송하기 위한 증폭기; 부분으로 구성된다. 본 고안에 따른 FM 신호처리기는 FM난청 지역에서의 FM 라디오방송 수신을 원활히 하기 위한 공청용 장치로서 공동주택, 건물 내에 설치되는 공청용 케이블을 이용하여 댁내에 FM신호를 전달한다. FM 신호처리기, 공청용 FM 중계기, 다채널 FM 신호처리기, FM Signal Processor
Abstract:
적절한 타이밍에서 수신 방송국의 전환이 가능한 FM 수신기 및 이것에 이용되는 신호 처리 장치를 제공한다. 데이타 블럭 검출부인 동기 재생 회로(34)가 디지탈 데이타로 복조된 FM 다중 데이타로부터 각 블럭의 선두 부분을 검출하여 블럭 선두 신호를 발생하고, 이것을 선국 마이크로 컴퓨터(22)의 제어부 (24)에 공급한다. 선국 키(20)으로부터의 방송국의 변경요구가 있으면, 제어부(24)에 선택하는 국에 따른 선국 데이타가 공급된다. 방송국의 변경 요구 후, 블럭 선두 신호가 입력되면, 제어부(24)는 이들에 따라 국 변경 데이타를 PLL 주파수 신서사이저(18)에 출력하고, 프론트 엔드(10)에서의 수신 주파수가 변경된다. 이것에 의해, FM 다중 데이타의 블럭 도중으로부터 데이타 NG가 되는 것이 방지된다.
Abstract:
A broadcasting system of a motor car linked with a screen door of a platform is provided to allow a driver to cope with an emergency by enabling the driver to directly talk to a passenger through an interphone installed on the screen door of the platform. A broadcasting system of a motor car linked with a screen door of a platform includes a motor car broadcasting device(10), first wireless transceiver(30), a second wireless transceiver(20), and a speaker(80). The motor car broadcasting device(10) is installed in an engine room of the motor car. The first wireless transceiver(30) is connected with the motor car broadcasting device(10). The second wireless transceiver(20) is installed on the screen door of the platform, and communicates with the first wireless transceiver(30) wirelessly. The speaker(80) is connected with the second wireless transceiver(20), and is integrally or separately installed on the screen door of the platform.
Abstract:
A method and a system for providing DMB(Digital Multimedia Broadcasting) service for a mobile communication terminal using a wireless LAN(Local Area Network) communication are provided to transmit DMB data from a mobile communication terminal capable of DMB to a mobile communication terminal that does not have a DMB receiving function. A system for providing DMB service for a mobile communication terminal includes a satellite DMB center(210) for producing DMB contents, compressing and modulating the DMB contents into a digital signal and transmitting the digital signal, a satellite(220) having a repeater for receiving the digital DMB signal, transmitting the DMB signal to a mobile communication system and providing a frequency band required for the transmission to the mobile communication system, and a shadow area repeater(230) installed in an area where the DMB signal is difficult to receive the DMB signal and relay the DMB signal to the mobile communication system. The system further includes a first mobile communication terminal(240) that includes a wireless communication module, receives the DMB signal and provides the DMB contents, and a second mobile communication terminal(250) that includes a wireless communication module and provides the DMB contents through a wireless LAN communication with the first mobile communication terminal.
Abstract:
PURPOSE: A broadcasting display method about an effective broadcasting transceiving device is provided to enable a user to rapidly grasp content provided in each broadcasting device and conveniently select broadcasting transmitting device which provided content desired according the same. CONSTITUTION: A broadcasting display method about a effective broadcasting transceiving device are comprised as follows: a step of receiving a broadcasting signal from a plurality of broadcasting transmitting devices(300), a step of comprising an image per broadcasting transmitting device by using received broadcasting signal(310), a step of displaying an images per extracted broadcasting transmitting device.