method for transmission of video signals, video cameras for the definition and applications of these cameras.

摘要

PCT No. PCT/FR89/00210 Sec. 371 Date Dec. 3, 1990 Sec. 102(e) Date Dec. 3, 1990 PCT Filed Oct. 15, 1990 PCT Pub. No. WO90/12306 PCT Pub. Date Oct. 18, 1990.A video camera comprises a lens 1, and image analyzer 2, management circuits 3, an incorporated programmable oscillator 4, a modulator 5, an antenna 7, a scanning tuner 8 equipped with a tuning detector circuit 12 and an electronic calculating unit 10 which controls scanning of the tuner, which records the frequencies detected by the detector 12, which selects a free frequency different from a multiple or a sub-multiple of the frequencies detected and which controls the oscillator 4 for the latter to emit a carrier frequency equal to the free frequency.