Michael A Wall

Address:

2828 Steepleridge Cir, Granbury, TX 76048

VIN:

5LNFU10197E273145

Make:

Lincoln

Model:

Navigator 4dr

Year:

2007

US Patent:

51071495, Apr 21, 1992

Filed:

Aug 19, 1991

Appl. No.:

7/746960

Inventors:

John C. Platt - Mountain View CA
Michael F. Wall - Sunnyvale CA
Glenn E. Gribble - San Jose CA
Carver A. Mead - Pasadena CA

Assignee:

Synaptics, Inc. - San Jose CA

International Classification:

H03F 345

US Classification:

307529

Abstract:

A linear voltage-to-current converter (LVCC) circuit includes two transistors, one P-channel and one N-channel. The input voltage is applied to the gates of both transistors. The drains of the two transistors are connected. The source of the p-type transistor is connected to a first voltage rail, and the source of the N-channel is connected to a second voltage rail of lower voltage. The output is the difference between the current through the P-channel transistor and the N-channel transistor. A linear current-to-voltage converter (LCVC) circuit is similar to the LVCC circuit, except that the gates of the transistors are tied to the drains of the transistors. The input current is supplied to the drains, and the output voltage is the voltage of the drains.

US Patent:

51650541, Nov 17, 1992

Filed:

Dec 18, 1990

Appl. No.:

7/629470

Inventors:

John C. Platt - Mountain View CA
Michael F. Wall - Sunnyvale CA
Glenn E. Gribble - San Jose CA
Carver A. Mead - Pasadena CA

Assignee:

Synaptics, Incorporated - San Jose CA

International Classification:

H03H 316

US Classification:

330277

Abstract:

A linear voltage-to-current converter (LVCC) circuit includes two transistors, one P-channel and one N-channel. The input voltage is applied to the gates of both transistors. The drains of the two transistors are connected. The source of the p-type transistor is connected to a first voltage rail, and the source of the N-channel is connected to a second voltage rail of lower voltage. The output is the difference between the current through the P-channel transistor and the N-channel transistor. A linear current-to-voltage converter (LCVC) circuit is similar to the LVCC circuit, except that the gates of the transistors are tied to the drains of the transistors. The input current is supplied to the drains, and the output voltage is the voltage of the drains.

US Patent:

53312155, Jul 19, 1994

Filed:

Jul 30, 1992

Appl. No.:

7/922535

Inventors:

Timothy P. Allen - Los Gatos CA
Janeen D. W. Anderson - Fremont CA
Carver A. Mead - Pasadena CA
Federico Faggin - Los Altos Hills CA
John C. Platt - Mountain View CA
Michael F. Wall - Sunnyvale CA

Assignee:

Synaptics, Incorporated - San Jose CA

International Classification:

H03K 190948

US Classification:

307201

Abstract:

A synaptic array according to the present invention comprises a plurality of electrically-adaptable elements. Electrons may be placed onto and removed from a floating node in each electrically adaptable element associated with at least one MOS insulated gate field effect transistor, usually the gate of the transistor, in an analog manner, by application of first and second electrical control signals generated in response to an adapt signal. The inputs to all synaptic elements in a row are connected to a common row input line. Adapt inputs to all synaptic elements in a column are connected together to a common column adapt line. The current supplied to all amplifiers in a column is commonly provided by a sense line. In order to adapt the synaptic elements in the M row by N column matrix of the present invention, the voltages to which a given column n of the matrix is to be adapted are placed onto the input voltage lines, and the synaptic elements in column n are then simultaneously adapted by assertion of an adapt signal on the adapt line for column n. The vectors of input voltages for adapting successive columns may be placed sequentially onto the row input voltage lines and used to adapt the columns of synaptic elements by assertion of the adapt signals on the appropriate column adapt lines until the entire array is electrically adapted.