公开(公告)号：KR800000656B1

公开(公告)日：1980-07-12

申请号：KR750001827

申请日：1975-08-18

Applicant: RCA CORP

Inventor： CROORS H ,  LEEDOM M ,  BLEAZEY J

IPC: H04N5/76

Abstract: Appts. for repositioning a signal pickup stylus from one convolution to another of a signal encoded spiral groove on the disc record is composed of a signal pickup stylus for recovering the recorded information, a pivoted support arm(21)for positioning the stylus(17) in the groove of the disc record during rotation and control means. The stylus which cooperates with an information storing spiral groove on a video disc record is caused to selectively skip groove convolutions of the disc record to produce special effects including stop, fast-forward andreverse motion of the displayed image.

公开(公告)号：KR800000893B1

公开(公告)日：1980-08-30

申请号：KR760000505

申请日：1976-03-02

Applicant: RCA CORP

Inventor： LEEDOM M

IPC: G11B3/10

Abstract: In a playback system including a base(10) and a cover(11), a turntable(12) is mounted for rotation relative to the base and has a surface adapted for receiving a disc record, the disc record(13) has a spiral groove(14) with information recorded therein, a support housing carries a signal pickup, and the signal pickup(15) is subject to positioning in relation to the spiral groove for scanning the information.

公开(公告)号：KR780000423B1

公开(公告)日：1978-10-10

申请号：KR730001497

申请日：1973-09-06

Applicant: RCA CORP

Inventor： LEEDOM M ,  MILLER M

IPC: G11B9/00 ,  G11B9/07

公开(公告)号：KR800000961B1

公开(公告)日：1980-09-15

申请号：KR760002316

申请日：1976-09-18

Applicant: RCA CORP

Inventor： ALLEN J ,  LEEDOM M

IPC: G11B3/02

Abstract: A pickup cartridge for a video disc palyer encloses a stylus arm unit comprising a stylus arm carring a stylus at one end and a magnetizable connector plate secured at its other end. A permanent magnet is centrally located in a recess provided in a magnetizable support member which is mounted in a carriage of the player. Then the counter plate is engaged with the support member, the seperation between the connector plate and the permanent magnet is greater than the seperation between the permanent magnet and the walls defining the recess.

公开(公告)号：KR800000330B1

公开(公告)日：1980-04-24

申请号：KR750002452

申请日：1975-11-12

Applicant: RCA CORP

Inventor： LEEDOM M

IPC: G11B25/04 ,  G11B25/06

Abstract: A pickup arm cartridge(26) houses a fragile signal pickup assembly of a video disc record player to protect the signal pickup assembly during storage and handling, and facilitate replacement of the signal pickup assembly without any critical manual adjustments or connections. A means is provided for disabling the leaf spring(47) during playback thereby disposing the signal pickup subject to engagement with the disc record(12).

公开(公告)号：US3826877A

公开(公告)日：1974-07-30

申请号：US28665772

申请日：1972-09-06

Applicant: RCA CORP

Inventor： LEEDOM M ,  MILLER M

IPC: G11B9/00 ,  G11B9/07 ,  G11B11/06

CPC classification number: G11B9/075

Abstract: A video disc playback system includes a pickup stylus which is adapted to track in a groove in a disc record. The record comprises a molded thermoplastic substrate supporting a conductive surface with a dielectric coating disposed over the conductive surface. When relative motion is established between the disc record and the pickup, the pickup stylus cooperates with the disc record to establish capacitance variations between the stylus and the record due to geometrical variations in the bottom of the groove. The stylus includes a support element having an irregular surface with a conductive element disposed on the irregular surface. The support element is shaped in a manner such that when it engages the record medium groove, an edge of the conductive element is adjacent the dielectric coating.

Abstract translation: 视频光盘播放系统包括适于在光盘记录中的凹槽中进行跟踪的拾取触针。 该记录包括支持导电表面的模制热塑性基材，其中设置在导电表面上的介电涂层。 当在盘记录和拾取器之间建立相对运动时，拾纸笔与盘记录协作，以由于凹槽底部的几何变化而在触笔和记录之间建立电容变化。 触针包括具有不规则表面的支撑元件，导电元件设置在不规则表面上。 支撑元件的形状使得当其与记录介质凹槽接合时，导电元件的边缘与电介质涂层相邻。

公开(公告)号：ZA7605465B

公开(公告)日：1977-08-31

申请号：ZA7605465

申请日：1976-09-13

Applicant: RCA CORP

Inventor： LEEDOM M ,  ALLEN J

IPC: G11B20060101 ,  G11B

公开(公告)号：HK27480A

公开(公告)日：1980-05-23

申请号：HK27480

申请日：1980-05-15

Applicant: RCA CORP

Inventor： LEEDOM M

IPC: G11B3/46 ,  G11B21/12 ,  G11B21/16

公开(公告)号：HK26680A

公开(公告)日：1980-05-23

申请号：HK26680

申请日：1980-05-15

Applicant: RCA CORP

Inventor： LEEDOM M

IPC: G11B3/02 ,  G11B3/08 ,  G11B3/26 ,  G11B3/34 ,  G11B3/46 ,  G11B21/20 ,  H04N5/76 ,  G11B21/26 ,  G11B21/04 ,  G11B21/18 ,  G11B21/22

公开(公告)号：BR7306894D0

公开(公告)日：1974-07-25

申请号：BR689473

申请日：1973-09-05

Applicant: RCA CORP

Inventor： MILLER M ,  LEEDOM M

IPC: G11B9/00 ,  G11B9/07 ,  G11B3/48

Abstract: A video disc playback system includes a pickup stylus which is adapted to track in a groove in a disc record. The record comprises a molded thermoplastic substrate supporting a conductive surface with a dielectric coating disposed over the conductive surface. When relative motion is established between the disc record and the pickup, the pickup stylus cooperates with the disc record to establish capacitance variations between the stylus and the record due to geometrical variations in the bottom of the groove. The stylus includes a support element having an irregular surface with a conductive element disposed on the irregular surface. The support element is shaped in a manner such that when it engages the record medium groove, an edge of the conductive element is adjacent the dielectric coating.