Henry K Anderson

US Patent:

57682682, Jun 16, 1998

Filed:

Jul 19, 1995

Appl. No.:

8/504175

Inventors:

Paul A. Kline - Germantown MD
Timothy J. Harris - Germantown MD
Henry W. Anderson - Palatine IL

Assignee:

Watkins Johnson Company - Palo Alto CA

International Classification:

H04Q 1104

US Classification:

370330

Abstract:

An open-architecture digital cellular base station readily adapted to support communication over a variety of air interface standards is disclosed herein. The base station includes a wideband digital transceiver system having transmit and receive sections. Within the transmit section, an input line interface operates to couple a plurality of input information signals onto a time-division multiplexed (TDM) transmit bus. A plurality of digital transmitter modules are coupled to the TDM transmit bus, each of the digital transmitter modules generating a set of digital baseband signals in response to a corresponding set of the plurality of input information signals. The set of digital information signals are applied to a wideband summation network disposed to sequentially add the set of digital information signals into a wideband data stream. A wideband transmitter then generates a wideband transmission waveform using the wideband data stream. The receive section includes a wideband receiver for: (i) receiving an incident composite signal, and (ii) generating a digital representation of the incident composite signal in the form of a wideband digital data stream applied to a wideband data bus.

US Patent:

40811344, Mar 28, 1978

Filed:

Jun 3, 1976

Appl. No.:

5/692249

Inventors:

Henry G. Anderson - Falls Church VA

International Classification:

E03B 920

US Classification:

239 30

Abstract:

A drinking fountain which is adjustable in height to accommodate persons of different heights and persons confined to wheelchairs, thereby obviating the need for providing two separate drinking fountains of different heights.