公开(公告)号：US3363127A

公开(公告)日：1968-01-09

申请号：US49371565

申请日：1965-10-07

Applicant: ZENITH RADIO CORP

Inventor： RENNICK JOHN L

IPC: H01J29/70

CPC classification number: H01J29/703

公开(公告)号：US2954494A

公开(公告)日：1960-09-27

申请号：US73098858

申请日：1958-04-25

Applicant: ZENITH RADIO CORP

Inventor： RENNICK JOHN L

IPC: H01J29/54

CPC classification number: H01J29/54

公开(公告)号：US2779818A

公开(公告)日：1957-01-29

申请号：US50547655

申请日：1955-05-02

Applicant: ZENITH RADIO CORP

Inventor： ROBERT ADLER ,  RENNICK JOHN L

IPC: H04N9/66

CPC classification number: H04N9/66

公开(公告)号：US3379923A

公开(公告)日：1968-04-23

申请号：US43141065

申请日：1965-02-09

Applicant: ZENITH RADIO CORP

Inventor： CHANDLER JAMES F ,  RENNICK JOHN L

IPC: H01J29/70

CPC classification number: H01J29/705 ,  H01J2229/5687

公开(公告)号：US3356879A

公开(公告)日：1967-12-05

申请号：US30201763

申请日：1963-08-14

Applicant: ZENITH RADIO CORP

Inventor： RENNICK JOHN L

IPC: H01J29/70

CPC classification number: H01J29/702 ,  H01J2229/5637 ,  H01J2229/5682

公开(公告)号：US3354336A

公开(公告)日：1967-11-21

申请号：US46825465

申请日：1965-06-30

Applicant: ZENITH RADIO CORP

Inventor： RENNICK JOHN L

IPC: H01J29/70

CPC classification number: H01J29/703

公开(公告)号：US3138730A

公开(公告)日：1964-06-23

申请号：US3036160

申请日：1960-05-19

Applicant: ZENITH RADIO CORP

Inventor： HEUER CHARLES H ,  RENNICK JOHN L

IPC: H01J29/70

CPC classification number: H01J29/702 ,  H01J2229/5682

公开(公告)号：US2793560A

公开(公告)日：1957-05-28

申请号：US34154453

申请日：1953-03-10

Applicant: ZENITH RADIO CORP

Inventor： RENNICK JOHN L

IPC: G01J3/46

CPC classification number: G01J3/46 ,  G01J3/502 ,  G01J3/524

公开(公告)号：US3925605A

公开(公告)日：1975-12-09

申请号：US48404174

申请日：1974-06-28

Applicant: ZENITH RADIO CORP

Inventor： RENNICK JOHN L

IPC: H04N9/882 ,  H04N5/76

CPC classification number: H04N9/882

Abstract: A video disc playback system develops a frequency modulated carrier wave in reading out the information stored in a video disc. A linear detector derives the program information from the carrier for utilization. A dropout detector, having a nonlinear characteristic particularly in the frequency range representing desired program information, develops a control signal only during operating intervals in which frequency deviations of the carrier beyond the frequency range devoted to program information indicate dropout conditions. That control signal is used to inject previously stored program information in the dropout intervals in order to accomplish dropout compensation.

Abstract translation: 视频光盘播放系统在读出存储在视频盘中的信息时开发调频载波。 线性检测器从运营商获取程序信息以供利用。 特别是在表示所需程序信息的频率范围内具有非线性特性的压差检测器仅在载波超出程序信息的频率范围的频率偏差指示丢失条件的操作间隔期间产生控制信号。 该控制信号用于将预先存储的节目信息注入到差错间隔中，以便实现丢失补偿。

公开(公告)号：US3614519A

公开(公告)日：1971-10-19

申请号：US3614519D

申请日：1967-12-18

Applicant: ZENITH RADIO CORP

Inventor： FIGLEWICZ RAYMOND C ,  RENNICK JOHN L

IPC: H01J29/00 ,  H01J29/86 ,  H01J29/06

CPC classification number: H01J29/867 ,  H01J29/003 ,  H01J2229/003 ,  H01J2229/0053

Abstract: A color cathode-ray tube assembly comprises a hollow envelope that has a neck section enclosing an electron gun apparatus for developing three electron beams and further has a funnel section a portion of which encloses a beam control electrode in the form of a shadow mask disposed across the path of the beams to achieve color selection. The beams are shielded from interfering magnetic fields by a shield formed of a pliable foil of magnetic material. This foil is positioned and secured upon the aforesaid portion of the funnel section and is patterned to conform to the contour of the funnel so as to be in magnetic coupling relation to the shadow mask. The foil supplants the aquadag coating heretofore applied to the outside surface of the funnel to serve as the grounded electrode of a filter capacitor for the high voltage power supply which energizes the tube.