1
Donald G Chandler, Eric P Batterman, Govind Shah: Polygonal information encoding article, process and system. United Parcel Service of America, James A Drobile, Raymond G Arner, January 23, 1990: US04896029 (255 worldwide citation)

The article of the invention is an optically readable label for storing encoded information, said label comprising a data array of a multiplicity of information-encoded polygons arranged in a predetermined geometric pattern, and said polygons having at least two different optical properties. A proce ...


2
Donald G Chandler, Eric P Batterman, Govind Shah: Hexagonal, information encoding article, process and system. United Parcel Service of America, James A Drobile, Robert S Bramson, Raymond G Arner, October 17, 1989: US04874936 (226 worldwide citation)

The article of the invention is an optically readable label for storing encoded information, said label comprising a data energy of a multiplicity of information-encoded hexagons contiguously arranged in a honeycomb pattern, and having at least two different optical properties.


3
Donald G Chandler, Eric P Batterman, Govind Shah: Polygonal information encoding article, process and system. United Parcel Service of America, James A Drobile, Raymond G Arner, March 5, 1991: US04998010 (189 worldwide citation)

The article of the invention is an optically readable label for storing encoded information, said label comprising a data array of a multiplicity of information-encoded polygons arranged in a predetermined geometric pattern, and said polygons having at least two different optical properties.


4
Govind Shah, Andrew L Pester, Carl M Stern: Low power coin discrimination apparatus. Qonaar Corporation, James P Ryther, July 18, 1989: US04848556 (72 worldwide citation)

A low power coin discriminator detects and identifies the denomination of a coin to activate a parking meter, telephone, or vending machine device. Initially the device is in a low power, dormant state. Insertion of a coin into the discrimator trips a switch which produces a wake-up pulse which turn ...


5
Govind Shah, David G Shaw, Donald G Chandler: System and method for acquiring an optical target. United Parcel Service of America, James A Drobile, William H Murray, Daniel H Golub, March 1, 1994: US05291564 (36 worldwide citation)

An optical target is acquired by an optical scanning system according to an in-band target frequency in an input signal from an optical scanning device. Both the in-band energy level and the out-of-band energy level of the input signal from the optical scanning device are determined. These two energ ...


6
Govind Shah, Peter A Basile, Ralph H Carmen, Stephen A Deschaine: Optical switch. DSC Communications Corporation, Baker & Botts, May 21, 1991: US05018131 (3 worldwide citation)

A switch (10) which uses optical signals propagating through an air media is disclosed. Transmitters (14a-14n) radiate light along projection openings (40) through a solid, opaque housing (12). The projection openings (40) parallel each other and substantially reside in a lower plane (32) within the ...


7
Govind Shah, David Goodwin Shaw, Donald Gordon Chandler: Frequency shifter for acquiring an optical target. United Parcel Services of America, T Daniel Christenbury, November 9, 1999: US05982950 (2 worldwide citation)

A method and system for acquiring an optical target affixed to a surface of a package with an optical scanning device. Height information associated with the height of the surface of the package is sensed and a height signal representative of a scanning distance between the optical target and the op ...


8
Donald G Chandler, Eric P Batterman, Govind Shah: Hexagonal information encoding article process and system. United Parcel Service Of America, CHENG TIANZHENG WU ZENGYONG, February 14, 1990: CN89102222

An optically readable label (30) for storing encoded information comprises a data array of a multiplicity of information-encoded polygons (20) arranged in a predetermined geometric pattern, polygons (20) having at least two different optical properties. A process for encoding information in the opti ...



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