1
Gerald V Piosenka, Ronald V Chandos: Unforgeable personal identification system. Motorola, Frank J Bogacz, February 12, 1991: US04993068 (843 worldwide citation)

An unforgeable personal identification system for identifying users at remote access control sites. The unforgeable personal identification system generates one-way encrypted versions of physically immutable identification credentials (facial photo, retinal scan, voice and finger prints). These cred ...


2
Gerald V Piosenka, David M Harrison, Ronald V Chandos: Tamperproof arrangement for an integrated circuit device. Motorola, Frank J Bogacz, April 11, 1995: US05406630 (168 worldwide citation)

A tamperproof arrangement for an integrated circuit device. The arrangement includes a package and lid fabricated of heavy metals to prevent X-radiation or infrared detection of circuit operation. Sensors and control circuitry are located on the integrated circuit die itself which detect increased t ...


3
Gerald V Piosenka, David M Harrison, Ronald V Chandos: Tamperproof arrangement for an integrated circuit device. Motorola, Frank J Bogacz, February 14, 1995: US05389738 (119 worldwide citation)

A tamperproof arrangement for an integrated circuit device. The arrangement includes a package and lid fabricated of heavy metals to prevent X-radiation or infrared detection of circuit operation. Sensors and control circuitry are located on the integrated circuit die itself which detect increased t ...


4
Joseph T Marino Jr, Ronald V Chandos: Processor for simulating digital structures. Motorola, Jonathan P Meyer, May 6, 1986: US04587625 (63 worldwide citation)

A hardware simulator for simulating digital structures includes a general purpose computer and an improved simulator processor. The improved processor handles an advanced primitive having four inputs and one output and which is capable of representing a memory cell or similar structure. The architec ...


5
Ronald V Chandos, Daniel R Tayloe: Method and apparatus for satellite handoff parameters prediction in an orbiting communications system. Motorola, Kevin K Johanson, October 1, 1996: US05561838 (36 worldwide citation)

A satellite cellular communications network performs cell-to-cell handoffs between cells of different satellites (30, 32). Inter-satellite handoffs require resynchronization to the prospective propagation timing and Doppler frequency parameters of the prospective satellite. Calculation of these para ...


6
Ronald V Chandos, Robert I Foster: Computer system and method for secure remote communication sessions. Motorola, Bradley J Botsch Sr, December 24, 1996: US05588059 (31 worldwide citation)

A computer system includes a Key Certification Agency (KCA) (12), a host computer (16), and a number of remote terminals (14). The KCA (12) uses incompatible encryption processes (96, 98) to encrypt session control data and to store the data as various messages (44, 46, 48) in a user token (26). The ...


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Ronald V Chandos, Brent M McKay: System and method of compensating propagation time variations and substituting for lost packets in a packetized voice communication system. Motorola, Kevin K Johanson, March 25, 1997: US05615214 (20 worldwide citation)

In a packetized communication system, packets are dispatched to a receiving node (10) for reassembly and presentation to a user. Packets propagating over dynamic paths have propagation variations between subsequent packets. Interactive packetized voice communication systems mandate that end-to-end d ...


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