Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1992-05-18
1995-10-03
Sugarman, Scott J.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
360 46, 360 67, 330254, 330252, G11B 509, H03F 345
Patent
active
054558166
ABSTRACT:
The invention concerns differential amplifiers for computer disc drives, implemented in Metal Oxide Semiconductor (MOS) technology. The amplifiers are of the controllable-gain type. Gain is controlled by adjusting the channel current which passes through the differential Field-Effect Transistors (FETs) of the amplifier. The channel current can be viewed as having a constant component, to which is added an adjustment component. The adjustment component does not pass through the active loads of the differential amplifier, thereby allowing a larger change in gain to be attained.
REFERENCES:
patent: 4184124 (1980-01-01), Asakawa
patent: 4459555 (1984-07-01), Jett, Jr.
patent: 4578723 (1986-03-01), Betts et al.
patent: 4622599 (1986-11-01), Norton, Jr.
patent: 4667165 (1987-05-01), De Weck
patent: 4712144 (1987-12-01), Klaassen
patent: 4766394 (1988-08-01), Yukawa
patent: 4772964 (1988-09-01), Kaida
patent: 4777472 (1988-10-01), Sauer et al.
patent: 4849711 (1989-07-01), Leis et al.
patent: 4849834 (1989-07-01), Allen
patent: 4973915 (1990-11-01), Batey
patent: 5051847 (1991-09-01), Philipps
patent: 5124849 (1992-06-01), Chur
patent: 5132852 (1992-07-01), Price, Jr.
patent: 5142238 (1992-08-01), White
patent: 5168395 (1992-12-01), Klaassen et al.
patent: 5184090 (1993-02-01), Anzai
patent: 5257146 (1993-10-01), Price, Jr. et al.
patent: 5270882 (1993-12-01), Jove et al.
patent: 5280196 (1994-01-01), Shinozaki
patent: 5309298 (1994-05-01), Klaasen et al.
patent: 5319508 (1994-06-01), Tsunoda et al.
patent: 5327297 (1994-07-01), Enami et al.
AT&T Global Information Solutions Company
Bailey Wayne P.
Chu Kim-Kwok
Hyundai Electronics America
Sugarman Scott J.
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