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Apparatus for processing modified NTSC television signals, with digital signals buried therewithin 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04N-007/08
출원번호 US-0108311 (1993-08-20)
발명자 / 주소
  • Limberg Allen L. (Ringoes NJ) Patel Chandrakant B. (Hopewell NJ) Liu Tianmin (Lawrenceville NJ)
출원인 / 주소
  • Samsung Electronics Co., Ltd. (Kyungki KRX 03)
인용정보 피인용 횟수 : 122  인용 특허 : 0

초록 ▼

A relatively low power phase-shift-keyed (PSK) subcarrier encoding digital information is admixed with composite video signal. The PSK subcarrier is at an odd multiple of half the scan line frequency of the composite video signal, and the symbol rate is at a multiple of the scan line frequency. The

대표청구항 ▼

A system for detecting symbols encoded in a PSK subcarrier buried in a composite video signal descriptive of image frames scanned with successive scan lines occurring at a prescribed scan line frequency and being repeated from time to time in a known pattern of repetition, said composite video signa

이 특허를 인용한 특허 (122)

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  118. Geoffrey B. Rhoads ; Ravi K. Sharma, Watermark detection using a fourier mellin transform.
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  119. Rhoads, Geoffrey B., Watermark embedder and reader.
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  120. Rhoads, Geoffrey B.; Gustafson, Ammon E., Watermark embedder and reader.
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