公开(公告)号：US3584145A

公开(公告)日：1971-06-08

申请号：US3584145D

申请日：1968-12-23

Applicant: BELL TELEPHONE LABOR INC

Inventor： CUTLER CASSIUS C ,  MOUNTS FRANK W

IPC: H04J3/16 ,  H04J3/18 ,  H04N7/36 ,  H04N21/2365 ,  H04N21/434 ,  H04N7/12

CPC classification number: H04N21/4347 ,  H04J3/1688 ,  H04J3/18 ,  H04N19/503 ,  H04N21/2365

Abstract: Video signals from several sources are processed by a plurality of redundancy reduction data compressors and combined in an asynchronous time division multiplexing system. Each redundancy reduction data compressor couples to its buffer memory only those video samples which differ by an amount greater than a threshold level from the video samples previously stored in a reference frame memory. A count of the number of frames stored in the buffer memory is utilized by a control logic circuit as a first condition to determine the priority of connecting each redundancy reduction data compressor to a transmission channel. When the number of frames in each buffer memory is equal, the control logic circuit utilizes a count of the number of samples stored in the buffer memory as a second condition to determine the priority for connection to the transmission channel. Several threshold circuits are provided in each of the redundancy reduction data compressors. The particular one chosen for use by the control logic circuit depends on the use that the data compressor has made of the transmission channel.

公开(公告)号：US3184742A

公开(公告)日：1965-05-18

申请号：US7770060

申请日：1960-12-22

Applicant: BELL TELEPHONE LABOR INC

Inventor： CUTLER CASSIUS C

IPC: H01Q1/08

CPC classification number: H01Q1/082 ,  Y10S343/02

公开(公告)号：US3183313A

公开(公告)日：1965-05-11

申请号：US7635860

申请日：1960-12-16

Applicant: BELL TELEPHONE LABOR INC

Inventor： CUTLER CASSIUS C

IPC: H04B3/20

CPC classification number: H04B3/20

公开(公告)号：US3088697A

公开(公告)日：1963-05-07

申请号：US86220059

申请日：1959-12-28

Applicant: BELL TELEPHONE LABOR INC

Inventor： CUTLER CASSIUS C

IPC: B64G1/36 ,  B64G3/00 ,  G01S5/02 ,  H01Q1/12

CPC classification number: G01S5/0247 ,  B64G1/36 ,  B64G3/00 ,  H01Q1/1257

公开(公告)号：US2989661A

公开(公告)日：1961-06-20

申请号：US58090856

申请日：1956-04-26

Applicant: BELL TELEPHONE LABOR INC

Inventor： CUTLER CASSIUS C

IPC: H01J23/24

CPC classification number: H01J23/24

公开(公告)号：US2927962A

公开(公告)日：1960-03-08

申请号：US42548554

申请日：1954-04-26

Applicant: BELL TELEPHONE LABOR INC

Inventor： CUTLER CASSIUS C

IPC: H03M1/06 ,  H03M1/12 ,  H04B14/04 ,  H04N7/26

CPC classification number: H04B14/046 ,  H03M1/0607 ,  H03M1/12 ,  H04N19/90

公开(公告)号：US2925520A

公开(公告)日：1960-02-16

申请号：US45224854

申请日：1954-08-26

Applicant: BELL TELEPHONE LABOR INC

Inventor： CUTLER CASSIUS C ,  MENDEL JOHN T

IPC: H01J23/08

CPC classification number: H01J23/08

公开(公告)号：US2824260A

公开(公告)日：1958-02-18

申请号：US60938356

申请日：1956-09-12

Applicant: BELL TELEPHONE LABOR INC

Inventor： CUTLER CASSIUS C

IPC: H01J31/18

CPC classification number: H01J31/18

公开(公告)号：US2619543A

公开(公告)日：1952-11-25

申请号：US17320450

申请日：1950-07-11

Applicant: BELL TELEPHONE LABOR INC

Inventor： CUTLER CASSIUS C

IPC: H04B7/17

CPC classification number: H04B7/165 ,  H04B7/17

公开(公告)号：US2605361A

公开(公告)日：1952-07-29

申请号：US17121850

申请日：1950-06-29

Applicant: BELL TELEPHONE LABOR INC

Inventor： CUTLER CASSIUS C

IPC: G06T9/00 ,  H03M3/04

CPC classification number: H04N19/593 ,  H03M3/04