Audio to video translator
Patent 4001880 Issued on January 4, 1977. Estimated Expiration Date: 
January 4, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 4, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2804500 2874212 3551589 3604852 3627912 3723652 3900886 InventorApplicationNo. 589438 filed on 06/23/1975US Classes:381/56MONITORING OF SOUNDExaminersPrimary: Richardson, Robert L.Assistant: Saffian, Mitchell International ClassH04N 11/00 (20060101)AbstractAn audio to video translator in which an RF oscillator having a frequency within the commercial television broadcast band is coupled to the antenna terminals of a commercial home television receiver and tuned to the selected channel with no other antenna terminal input. The RF oscillator is modulated with vertical and horizontal sync pulses together with the outputs of a color oscillator which in turn is modulated by incoming audio such as from a standard stereo receiver tape deck or record player. Blanking and unblanking pulses from the output of a video generator also modulate the RF oscillator, the video generator being frequency modulated by outputs from the sync pulse generators and the audio channels. | |
