Dean Allen Collins

US Patent:

40356663, Jul 12, 1977

Filed:

Oct 8, 1975

Appl. No.:

5/620673

Inventors:

Dean Robert Collins - Dallas TX
Lewis T. Clairborne - Dallas TX

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H03K 2100
H03K 2308
H03K 2314
H03K 2322

US Classification:

307221D

Abstract:

Semiconductor charge devices are defined to effect a serial-to-parallel conversion of analogue signal information. In one aspect of the invention, a digital signal is extracted from an analogue noise environment by a shift register correlator comprising a bucket-bridge configuration of field-effect transistors in combination with gating field-effect transistors which are effective to weight the amplitude of the data in corresponding bits of the shift register. The gates of the gating transistors are selectively connected to diffused regions of transistors of the bucket-brigade delay line to effect parallel tapped outputs therefrom. The weighted signals from the gating transistors are summed at a common terminal to form the auto-correlated output. In a different aspect of the invention, the analogue delay line is effected by a charge-coupled shift register, parallel taps being obtained from diffused regions under selected electrodes of the shift register ohmically connected to gates of the gating field-effect transistors.

US Patent:

39383180, Feb 17, 1976

Filed:

Jun 8, 1973

Appl. No.:

5/368372

Inventors:

Dean Robert Collins - Dallas TX

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G04C 1902
H02J 314

US Classification:

58 50R

Abstract:

There is disclosed a battery powered wrist watch utilizing solid state circuits and a liquid crystal display to eliminate mechanical parts. Complementary metal oxide semiconductor (CMOS) devices are used to drive liquid crystal display cells. The liquid cells dissipate only microwatts of power when energized and the CMOS devices require appreciable power only when switching from one state to the other. The combination of the liquid crystal display with the CMOS driving circuitry provides a low power, compact, portable watch.

US Patent:

39462471, Mar 23, 1976

Filed:

Nov 5, 1971

Appl. No.:

5/196043

Inventors:

Dean Robert Collins - Dallas TX
Lewis T. Clairborne - Dallas TX

Assignee:

Texas Instruments Inc. - Dallas TX

International Classification:

H03K 5159
G11C 1928
H01L 2710
H01L 2978

US Classification:

307221D

Abstract:

Semiconductor charge devices are defined to effect a serial-to-parallel conversion of analogue signal information. In one aspect of the invention, a digital signal is extracted from an analogue noise environment by a shift register correlator comprising a bucket-brigade configuration of field-effect transistors in combination with gating field-effect transistors which are effective to weight the amplitude of the data in corresponding bits of the shift register. The gates of the gating transistors are selectively connected to diffused regions of transistors of the bucket-brigade delay line to effect parallel tapped outputs therefrom. The weighted signals from the gating transistors are summed at a common terminal to form the auto-correlated output. In a different aspect of the invention, the analogue delay line is effected by a charge-coupled shift register, parallel taps being obtained from diffused regions under selected electrodes of the shift register ohmically connected to gates of the gating field-effect transistors.

US Patent:

40927342, May 30, 1978

Filed:

Jun 6, 1977

Appl. No.:

5/803720

Inventors:

Dean R. Collins - Dallas TX
Bill R. Norvell - Richardson TX

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G11C 1140

US Classification:

365238

Abstract:

A memory system for analogue data includes a plurality of semiconductor charge device shift registers integrated on a semiconducor substrate. In one embodiment analogue data is serially inputed into a charge-coupled device (CCD) shift register. The serial data is converted to parallel and propagates at a substantially slower speed through a plurality of shift registers. A parallel-to-serial conversion provides a serial readout of the data. The serial-parallel-serial arrangement of the memory significantly reduces the number of transfers required to propagate one bit of data through the memory and provides correspondingly improved outputs. In a different aspect of the invention, a plurality of bits of digital data are transformed into a single analogue signal effecting a reduction in size of the memory for equal storage capability.

US Patent:

39928748, Nov 23, 1976

Filed:

Jul 23, 1975

Appl. No.:

5/598499

Inventors:

Dean Robert Collins - Dallas TX

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G04C 300
G04B 1930

US Classification:

58 50R

Abstract:

There is disclosed a battery powered wrist watch utilizing solid state circuits and a liquid crystal display to eliminate mechanical parts. Complementary metal oxide semiconductor (CMOS) devices are used to drive liquid crystal display cells. The liquid crystal cells dissipate only microwatts of power when energized and the CMOS devices require appreciable power only when switching from one state to the other. The combination of the liquid crystal display with the CMOS driving circuitry provides a low power, compact, portable watch.