Oscillator-modulator apparatus and method therefor
Patent 4152671 Issued on May 1, 1979. Estimated Expiration Date: 
July 25, 1997. 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.
July 25, 1997. 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.InventorsApplicationNo. 05/818838 filed on 07/25/1977US Classes:331/68, WITH OUTER CASING OR HOUSING174/366, Resilient member174/377, Housing or panel331/117R, L-C type332/152, Including discrete semiconductor device332/178, Including discrete semiconductor device361/752, With housing or chassis361/818, EMI463/1INCLUDING MEANS FOR PROCESSING ELECTRONIC DATA (E.G., COMPUTER/VIDEO GAME, ETC.)ExaminersPrimary: Kominski, JohnAttorney, Agent or FirmInternational ClassesH05K 7/14 (20060101)H05K 9/00 (20060101) AbstractA radio frequency oscillator-modulator for use in a video game includes a folded metal shield box having a slot on one of its ends in which a similarly slotted printed circuit board containing the oscillator and modulator is mated with. Circuitry of the oscillator and modulator provides for great linearity and low R.F. radiation. The slot arrangement provides for effective grounding of the ground metallization of the external portion of the printed circuit board which contains the radio frequency output terminal along with the various input terminals. This portion contains ground metallization which makes very effective electrical contact with the slot of the shield box thus again containing R.F. radiation. | |
