1
Ralph M Clendenin, Raymond S Freeman: Optical target tracking and designating system. Martin Marietta Corporation, Julian C Renfro, William J Iseman, Gay Chin, June 7, 1983: US04386848 (119 worldwide citation)

An optical sight system having in combination: a sight assembly (10), including a stabilized mirror (12, 14), a laser designator (24), a laser ranger (26), a common optical system (16), a television optical system (20), and a television camera (22); a control panel (50), including manual control (52 ...


2
Robert O DeWoody, Ralph M Hollerich: Multifunction wheelchair handbrake especially adapted for ramp climbing. Julian C Renfro, Julian C Renfro, December 24, 1985: US04560033 (109 worldwide citation)

A multiposition handbrake for a wheelchair or the like is provided in accordance with this invention, which involves a housing in which an elongate handle is pivotally disposed. A portion adapted to be grasped by the user of the wheelchair is provided above the pivot point of the handle, and a wheel ...


3
Thomas F Hodgson, Michael W Payne, Peter C Piegrome: Credit transaction arrangements. Plessey Overseas, Michael F Oglo, Julian C Renfro, June 7, 1988: US04750201 (100 worldwide citation)

The invention concerns call-charge payment of telephone calls from payphone telephone instruments (PI) using a credit card, or the like. The invention provides credit transaction arrangements for automatic call-charge payment of calls established through a telecommunications network from payphone in ...


4
Denmer Dix Baxter, Charles Michael Reeves: Walsh function signal scrambler. Martin Marietta Corporation, Julian C Renfro, Gay Chin, Howard L Bernstein, October 4, 1977: US04052565 (87 worldwide citation)

A digital speech scrambler system allowing for the transmission of scrambled speech over a narrow bandwidth by sequency limiting the analog speech in a low-pass sequency filter and thereafter multiplying the sequency limited speech with periodically cycling sets of Walsh functions at the transmitter ...


5
Brian J Maclean, Bernard F Carpenter, Mohan S Misra: Adaptive control surface using antagonistic shape memory alloy tendons. Lockheed Martin Corporation, Julian C Renfro Esq, Gay Chin Esq, Patrick Hogan Esq, September 2, 1997: US05662294 (85 worldwide citation)

A pliant, controllable contour control surface comprising a first flexible facesheet formed to a first initial contour of the control surface, and a second flexible facesheet formed to a second initial contour of the control surface. The first and second facesheets each have a set of prestrained sha ...


6
William E Clark: Liquid-cooled, flat plate heat exchanger. Julian C Renfro, July 3, 1990: US04938280 (78 worldwide citation)

A one-piece, substantially flat and very thin heat exchanger core in accordance with this invention has two flat and parallel surfaces, with each of said surfaces being suitable as a mounting surface for a number of heat producing electronic chips. These surfaces are closely spaced and separated by ...


7
William L Knight, Mark Paraskeva, David F Burrows: Integrated circuits. Plessey Overseas, Michael F Oglo, Julian C Renfro, August 16, 1988: US04764926 (64 worldwide citation)

An integrated circuit having a built-in self test facility, the integrated circuit being partitioned into a number of sub-circuits each of which comprises a combinatorial logic circuit and a register. The sub-circuits are coupled together so that each combinatorial logic circuit has its inputs coupl ...


8
Graham Beniston, Nigel P Dyer, Andrew J T Wheen: Echo canceller. Plessey Overseas, Michael F Oglo, Julian C Renfro, July 12, 1988: US04757527 (64 worldwide citation)

A digital adaptive echo canceller for use in cancelling echo signals caused by trans-hybrid losses in two-wire to four-wire converters comprises first and second adaptive filters (20,22) each arranged to generate synthetic echo signals. Transfer control logic (23) compares difference signals relativ ...


9
Guerin D Rife, W Preston Willingham: Cap having illuminated indicia. Gift Asylum, Julian C Renfro, May 5, 1992: US05111366 (63 worldwide citation)

A cap for displaying information on the front thereof, this cap comprising a crown portion adapted to be worn on the head of the user and having a front section, with the front section having an opening therein. Adjacent this opening is a panel-supporting arrangement, with this panel-supporting arra ...


10
Kenneth J Lamb: Arithmetic logic and shift device. Plessey Overseas, Michael F Oglo, Julian C Renfro, July 26, 1988: US04760544 (63 worldwide citation)

A device which includes an arithmetic logic unit and a data shifter--e.f. a barrel shifter. The outputs of these are cross-coupled to their inputs by separate feedback connections. A third feedback connection is provided between the output of the arithmetic logic unit and another of its inputs. For ...