公开(公告)号：US3601536A

公开(公告)日：1971-08-24

申请号：US3601536D

申请日：1969-01-15

Applicant: IBM

Inventor： CALFEE RICHARD W

IPC: H04N5/92 ,  H04N5/04

CPC classification number: H04N5/92

Abstract: A system whereby a composite video signal is developed by a vidicon camera tube which is driven off a clock track from a rotating magnetic disk. The synchronizing signals from this composite signal are removed and inverted to signals within the same amplitude range as the analog video signal, and combined with the analog video signal. This new composite video signal with inverted sync frequency modulates a carrier which is applied to a rotating disk. Upon readout, this frequency-modulated signal is demodulated and the inverted sync is removed. Conventional sync time replaces the inverted sync.

公开(公告)号：US3233181A

公开(公告)日：1966-02-01

申请号：US25413863

申请日：1963-01-28

Applicant: IBM

Inventor： CALFEE RICHARD W

IPC: H04L27/14 ,  H04L27/156

CPC classification number: H04L27/1563 ,  H04L27/14

公开(公告)号：US3466392A

公开(公告)日：1969-09-09

申请号：US3466392D

申请日：1966-03-03

Applicant: IBM

Inventor： CALFEE RICHARD W ,  HOPNER EMIL ,  MEYER ORMAN F ,  WEST LYNN P

IPC: H03C1/54 ,  H04B14/00 ,  H04L27/10 ,  H04L27/00 ,  H04B1/00 ,  H04B1/62

CPC classification number: H04L27/10 ,  H03C1/545 ,  H04B14/006

公开(公告)号：US3383600A

公开(公告)日：1968-05-14

申请号：US35143364

申请日：1964-03-12

Applicant: IBM

Inventor： CALFEE RICHARD W

IPC: H04B7/12 ,  H04L27/14

CPC classification number: H04L27/14 ,  H04B7/12

公开(公告)号：CA749043A

公开(公告)日：1966-12-20

申请号：CA749043D

Applicant: IBM

Inventor： CALFEE RICHARD W

公开(公告)号：CA824762A

公开(公告)日：1969-10-07

申请号：CA824762D

Applicant: IBM

Inventor： CALFEE RICHARD W ,  WEST LYNN P ,  MEYER ORMAN F ,  HOPNER EMIL