公开(公告)号：US3833408A

公开(公告)日：1974-09-03

申请号：US24566372

申请日：1972-04-19

Applicant: RCA CORP

Inventor： MATTHIES D

IPC: G11B9/06 ,  B05D7/04 ,  G11B3/58 ,  G11B3/70 ,  G11B3/72 ,  G11B5/72 ,  G11B7/24 ,  G11B11/00 ,  G11B23/50 ,  H04N5/76 ,  G11B5/00

CPC classification number: G11B23/505 ,  C10M3/00 ,  C10M7/00 ,  C10M2229/041 ,  C10N2240/00 ,  C10N2240/06 ,  C10N2240/20 ,  C10N2240/201 ,  C10N2240/202 ,  C10N2240/203 ,  C10N2240/204 ,  C10N2240/205 ,  C10N2240/22 ,  C10N2240/30 ,  C10N2240/50 ,  C10N2240/52 ,  C10N2240/54 ,  C10N2240/56 ,  C10N2240/58 ,  C10N2240/60 ,  C10N2240/66 ,  C10N2250/10 ,  G11B3/707 ,  H04N5/7605 ,  H04N5/903 ,  Y10T428/31663

Abstract: Application of certain methyl alkyl siloxane compounds to the surface of video disc replicas reduces surface friction generated during playback with no sacrifice in video quality.

Abstract translation: 某些甲基烷基硅氧烷化合物在视盘复制品表面的应用减少了播放期间产生的表面摩擦，而不牺牲视频质量。

公开(公告)号：US3843399A

公开(公告)日：1974-10-22

申请号：US24566472

申请日：1972-04-19

Applicant: RCA CORP

Inventor： KAPLAN M ,  MATTHIES D

IPC: G11B3/70 ,  B05D7/00 ,  B05D7/04 ,  B05D7/24 ,  B29D17/00 ,  B32B15/00 ,  G11B3/72 ,  G11B7/24 ,  G11B9/06 ,  G11B11/00 ,  G11B11/08 ,  G11B11/16 ,  H01B3/46 ,  G11B5/00

CPC classification number: B05D1/62 ,  C10M3/00 ,  G11B9/067 ,  H01B3/46

Abstract: 1. AN INFORMATION RECORD ADAPTED FOR USE WITH A PLAYBACK STYLUS TO EFFECT OF SIGNALS OCCUPYING A BANDWIDTH OF AT LEAST SEVERAL MEGAHERTZ WHEN RELATIVE MOTION AT A DESIRED RATE IS ESTABLISHED BETWEEN SAID RECORD AND SAID STYLUS, SAID RECORD COMPRISING: (A) A DISC HAVING A SPIRAL GROOVE IN A SURFACE THEREOF, SAID GROOVE BEING DIMENSIONED FOR RECEPTION THEREIN OF SAID STYLUS AND CONTAINING AN INFORMATION TRACK CONSTITUTED BY GEOMETRIC VARIATIONS IN THE BOTTOM OF SAID GROOVE, (B) A CONTINOUS CONDUCTIVE METAL LAYER ON SAID SURFACE, SAID LAYER BEING OF SUBSTANTIALLY UNIFORM THICKNESS, AND (C) A THIN DIELECTRIC COATING OF UNIFORM THICKNESS OVERLYING SAID METAL LAYER, SAID DIELECTRIC COATING BEING A POLYSTYRENE APPLIED IN A GLOE DISCHARGE, AND THE COMBINED THICKNESS OF SAID CONDUCTIVE LAYER AND SAID DIELECTRIC COATING DO NOT FILL SAID GROOVE, ALLOWING FOR RECEPTION OF SAID STYLUS WITHIN SAID GROOVE DURING PLAYBACK.