公开(公告)号：US3193703A

公开(公告)日：1965-07-06

申请号：US19898262

申请日：1962-05-31

Applicant: IBM

Inventor： CROUSE WILLIAM G

IPC: H03K3/315

CPC classification number: H03K3/315

公开(公告)号：US3599119A

公开(公告)日：1971-08-10

申请号：US3599119D

申请日：1969-05-29

Applicant: IBM

Inventor： CROUSE WILLIAM G ,  EPLEY PHILLIP R

IPC: H01L29/84 ,  H03B5/30 ,  H03L1/04 ,  H03B5/36

CPC classification number: H03B5/30 ,  H03L1/04

Abstract: An automatic gain control circuit for a resonistor, i.e., a mechanical oscillator, formed from a single silicon crystal, can be diffused directly into the crystal. The circuit requires no phase reactive components and the entire oscillatory unit can be fabricated by monolithic circuit techniques.

公开(公告)号：US3432616A

公开(公告)日：1969-03-11

申请号：US3432616D

申请日：1965-04-15

Applicant: IBM

Inventor： CROUSE WILLIAM G

IPC: H04B1/52 ,  H03B28/00 ,  H03F3/30 ,  H03G3/30 ,  H03G3/34 ,  H03G7/00 ,  H03G11/02 ,  H03K5/13 ,  H04L27/10 ,  H04L27/144 ,  H04L27/148 ,  H01L27/12

CPC classification number: H04L27/148 ,  H03B28/00 ,  H03F3/3076 ,  H03F2203/7239 ,  H03G3/3036 ,  H03G3/341 ,  H03G7/001 ,  H03G11/02 ,  H03K5/13 ,  H04L27/10 ,  H04L27/144

公开(公告)号：US3559083A

公开(公告)日：1971-01-26

申请号：US3559083D

申请日：1967-10-13

Applicant: IBM

Inventor： CROUSE WILLIAM G

IPC: H04L27/14 ,  H04L27/156

CPC classification number: H04L27/14 ,  H04L27/1563

Abstract: DIGITAL LOGIC DEVICES RESPOND TO INCOMING TRANSMISSION SIGNALS IN A FREQUENCY SHIFT KEYING SYSTEM AND DETERMINE THE FREQUENCY OF EACH HALF CYCLE OF THE INCOMING SIGNAL. CONSEQUENTLY, A MAXIMUM DATA TRANSMISSION RATE CAN BE ACHIEVED WITH EACH HALF CYCLE OF THE CARRIER REPRESENTING A BIT OF INFORMATION. MONOSTABLE DEVICES RESPONSE TO EACH CHANGE IN AMPLITUDE OF THE INCOMING SIGNAL AND CONTROL A SAMPLING CIRCUIT TO IDENTIFY THE INCOMING SIGNAL FREQUENCY.

公开(公告)号：US3558932A

公开(公告)日：1971-01-26

申请号：US3558932D

申请日：1968-04-24

Applicant: IBM

Inventor： CROUSE WILLIAM G

IPC: H03B28/00 ,  H04L27/10 ,  H04L27/144 ,  H04L27/148 ,  H03K17/28

CPC classification number: H04L27/148 ,  H03B28/00 ,  H03F2203/7239 ,  H04L27/10 ,  H04L27/144

Abstract: An improved delay circuit provides exactly equal time delays of both the positive and negative-going changes in the bivalued data signals applied thereto with a minimum number of components and interconnections.

公开(公告)号：US3617774A

公开(公告)日：1971-11-02

申请号：US3617774D

申请日：1970-03-04

Applicant: IBM

Inventor： CROUSE WILLIAM G

IPC: H03G1/00 ,  H03L7/081 ,  H03K1/12

CPC classification number: H03G1/0082 ,  H03L7/0812

Abstract: An inverting amplifier includes a shunt feedback impedance element connected between its input and output terminals. The feedback current is divided between a series input resistance Rin and an impedance Rs shunting Rin. Either Rs or Rin is in the form of a variable impedance semiconductor device and a suitable source of control signals is applied to the semiconductor device to cause it to have a variable impedance. This variable impedance causes the output impedance Zo of the amplifier to vary as a function of the input control signals to the semiconductor device. The output impedance is resistive, capacitive, inductive, or the like, depending upon the nature of the feedback impedance of the amplifier; and the device is useful in varied applications such as automatic gain control, frequency and phase control, power regulation, delay equalizers, modulators and the like.

公开(公告)号：US3539828A

公开(公告)日：1970-11-10

申请号：US3539828D

申请日：1968-04-24

Applicant: IBM

Inventor： CROUSE WILLIAM G

IPC: H03B28/00 ,  H04L27/10 ,  H04L27/144 ,  H04L27/148 ,  H03K9/06

CPC classification number: H03B28/00 ,  H03F2203/7239 ,  H04L27/10 ,  H04L27/144 ,  H04L27/148

公开(公告)号：US3218474A

公开(公告)日：1965-11-16

申请号：US19704762

申请日：1962-05-23

Applicant: IBM

Inventor： CROUSE WILLIAM G

IPC: H03K19/10

CPC classification number: H03K19/10

公开(公告)号：US3636382A

公开(公告)日：1972-01-18

申请号：US3636382D

申请日：1970-03-09

Applicant: IBM

Inventor： CROUSE WILLIAM G

IPC: G05F1/613 ,  G06G7/163 ,  H03C1/36 ,  H03G1/00 ,  H03L7/081 ,  H04B3/14 ,  H03K1/12

CPC classification number: G06G7/163 ,  G05F1/613 ,  H03C1/36 ,  H03G1/0035 ,  H03L7/0812 ,  H04B3/148

Abstract: An inverting amplifier includes a shunt feedback impedance element connected between its input and output terminals. The feedback current is divided between a series input resistance Rin and an impedance Rs shunting Rin. Either Rs or Rin is in the form of a variable impedance semiconductor device and a suitable source of control signals is applied to the semiconductor device to cause it to have a variable impedance. This variable impedance causes the output impedance Zo of the amplifier to vary as a function of the input control signals to the semiconductor device. The output impedance is resistive, capacitive, inductive, or the like, depending upon the nature of the feedback impedance of the amplifier; and the device is useful in varied applications such as automatic gain control, frequency and phase control, power regulation, delay equalizers, modulators, and the like.

公开(公告)号：US3558917A

公开(公告)日：1971-01-26

申请号：US3558917D

申请日：1968-04-24

Applicant: IBM

Inventor： CROUSE WILLIAM G

IPC: G06G7/25 ,  H03D1/06 ,  H04L27/14 ,  H03F1/34

CPC classification number: G06G7/25 ,  H03D1/06 ,  H04L27/14

Abstract: An improved threshold detector includes a high gain amplifier with negative feedback means and a Schmitt trigger coupled to the output of the amplifier. The feedback means includes semiconductor devices normally biased to cause (1) low gain amplification of input signal levels below a first input current threshold, (2) high gain amplification of input signal levels between the first threshold and a second, higher threshold, and (3) low gain amplification of input signal levels above the second threshold. The Schmitt trigger responds to positive and negative amplifier output signal levels in the high gain region for switching back and forth between its two stable states. The detector exhibits a significant improvement in signal/noise discrimination in a communications environment.