Audio activated video display
Patent 4081829 Issued on March 28, 1978. Estimated Expiration Date: 
March 28, 1995. 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.
March 28, 1995. 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 2858368 3529079 3723652 3886588 3900886 InventorApplicationNo. 716765 filed on 08/23/1976US Classes:381/56MONITORING OF SOUNDExaminersPrimary: Martin, John C.Attorney, Agent or FirmInternational ClassH04N 009/02AbstractAn interface unit for providing visual color display of objects on an unaltered TV receiver which are directly associated with the music on an audio source. Audio energy is derived from separate channels of a stereo system. This audio information is presented on the screen in the form of objects in various arrangements. Color is derived based on the zero crossing rate of each channel. Each channel has its own color associated with it. Objects may be solid, or rings, or one may be "subtracted" one from the other. If desired, the different arrays may be selected automatically in a random manner. A spectral color modulator using phase shifted techniques is incorporated. | |
