디지털 텔레비전 방송 신호를 이용한 위치 결정에 바탕한 내버게이션 서비스

Navigation services based on position location using broadcast digital television signals

Abstract

서비스는 장치의 위치에 따라 좌우된다. 이 장치 위치는 DTV 신호를 이용하여 결정된다. 보다 구체적으로, 장치 위치는 장치와 다수의 디지털 텔레비전(DTV) 송신기간의 의사범위를 바탕으로 결정되며, 상기 의사범위는 DTV 송신기로부터 장치에 의해 수신되는 DTV 방송 신호를 바탕으로 결정된다. DTV 신호의 예로는 ATSC(American Television Standards Committee) 신호, ETSI DVB-T(European Telecommunications Standards Institute Digital Video Broadcasting - Terrestrial) 신호, 그리고 일본 ISDB-T(Integrated Service Digital Broadcasting - Terrestrial) 신호가 있다.
A service depends on the location of a device (102). The device (102) location is determined using DTV signals. More specifically, the device (102) location is determined based on pseudo-ranges between the device (102) and a plurality of digital television (DTV) transmitters (106A, 106B,...106N) and the pseudo- ranges are determined based on broadcast DTV signals received by the device (102) from the DTV transmitters (106A, 106B,...106N). Examples of DTV signals include the American Television Standards Committee (ATSC) signals, the European Telecommunications Standards Institute Digital Video Broadcasting - Terrestrial (DVB-T) signals and the Japanese Integrated Service Digital Broadcasting-Terrestrial (ISDB-T) signals.

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