公开(公告)号：US3898375A

公开(公告)日：1975-08-05

申请号：US42431973

申请日：1973-12-13

Applicant: RCA CORP

Inventor： HANNAN WILLIAM JAMES ,  SINGLETON ROBERT SHELBY

IPC: H03H7/01 ,  H03H7/06 ,  H03H7/07 ,  H03J5/00 ,  H04B1/10 ,  H04B3/36 ,  H04N7/16 ,  H04N1/44

CPC classification number: H03H7/1766 ,  H03H7/06 ,  H03H7/07 ,  H03J5/00 ,  H04B3/36 ,  H04N7/166

Abstract: The filter is of a bridged-T construction, and includes a pair of semiconductor rectifiers in back-to-back relationship. An oscillation voltage is applied to the junction of the rectifiers to vary their reverse biases and the junction capacities they exhibit. The variations in notch frequency which result are selected to overlap possible drift in filter tuning and provide continued signal rejection in the presence of such changes.

Abstract translation: 滤波器是桥接T结构，并且包括一对背对背关系的半导体整流器。 整流器的接点施加振荡电压，以改变它们的反向偏置和它们所显示的接合电容。 选择结果的陷波频率的变化与滤波器调谐中的可能漂移重叠，并在存在这种变化的情况下提供持续的信号抑制。

公开(公告)号：US3647945A

公开(公告)日：1972-03-07

申请号：US3647945D

申请日：1969-09-30

Applicant: RCA CORP

Inventor： HANNAN WILLIAM JAMES

IPC: H04N9/07 ,  H04N5/84 ,  H04N9/083 ,  H04N9/11 ,  H04N9/79 ,  H04N9/06

CPC classification number: H04N9/083 ,  H04N5/84 ,  H04N9/11

Abstract: Apparatus is provided for enabling color images to be recorded on black and white motion picture film and subsequently displayed in full color on a television monitor. Different color-encoding filters yielding the same frequency color carrier waves having different phase relationships are moved into the optical path on alternate frames for producing color representative signals, which, when averaged over several horizontal scanning lines, reduce the undesirable effects of vidicon lag and frame-to-frame misregistration.

Abstract translation: 提供了用于使彩色图像能够记录在黑白电影胶片上并随后在电视监视器上以全色显示的设备。 产生具有不同相位关系的相同频率颜色载波的不同颜色编码滤波器被移动到用于产生颜色代表信号的交替帧上的光路中，当在几条水平扫描线上平均时，减少视频滞后和帧的不期望的影响 对框失调。

公开(公告)号：US3703407A

公开(公告)日：1972-11-21

申请号：US3703407D

申请日：1970-12-15

Applicant: RCA CORP

Inventor： HANNAN WILLIAM JAMES ,  RUSSELL JOHN PATRICK ,  FIRESTER ARTHUR HERBERT

IPC: G03H1/02 ,  H04N5/76 ,  G02B27/22 ,  G03C5/22

CPC classification number: G03H1/0256 ,  G03H1/0244 ,  G03H1/028 ,  G03H2250/36 ,  G03H2270/22 ,  G03H2270/23 ,  H04N5/76 ,  H04N5/89

Abstract: AN IMPROVED RELIEF PHASE HOLOGRAM IS DESCRIBED WHICH MINIMIZES SIGANL DISTORTION UPON PLAYBACK. THE HOLOGRAM COMPRISES A HOLOGRAPHIC RELIEF PATTERN EMBOSSED ON A POLYMERIC SUBSTRATE SUCH AS A VINYL TAPE AND A COATING ON THE SURFACE OF THE SUBSTRATE DIRECTLY OVER THE RELIEF PATTERN. THE COATING MUST HAVE A THICKNESS OF SOMEWHAT GREATER THAN THE MAXIMUM CONTOUR DEPTH OF THE RELIEF PATTERN AND MUST BE OF A MATERIAL HAVING AN INDEX OF REFRACTION WHICH IS DIFFERENT FROM THAT OF THE SUBSTRATE.

公开(公告)号：US3619025A

公开(公告)日：1971-11-09

申请号：US3619025D

申请日：1969-09-30

Applicant: RCA CORP

Inventor： HANNAN WILLIAM JAMES

IPC: F02B53/00 ,  G03H1/00 ,  G03B27/00

CPC classification number: G03H1/00 ,  F02B53/00 ,  F02B2730/05 ,  G03H2001/0232 ,  Y02T10/17

Abstract: Longitudinal streak in playback of pressed phase hologram motion pictures on plastic tape, due to diffraction by longitudinal scratches on the plastic tape, which is normally superimposed on reconstructed image, is eliminated by recording phase hologram with object beam oblique to surface of recording medium. This displaces the streak from the area of the reconstructed image. Angle of incidence of readout beam is optimized to produce minimum shift in the axis of the image beam in response to any twisting of flexible tape.

公开(公告)号：US3882207A

公开(公告)日：1975-05-06

申请号：US40754573

申请日：1973-10-18

Applicant: RCA CORP

Inventor： HANNAN WILLIAM JAMES ,  FRATTAROLA JOSEPH RALPH

IPC: B29C59/04 ,  G03H1/02 ,  H04N5/76 ,  B29C17/00 ,  B29D11/00

CPC classification number: G03H1/028 ,  B29C59/04 ,  B29L2031/7224 ,  G03H1/0244 ,  G03H2001/2615 ,  G03H2227/04 ,  H04N5/76 ,  H04N5/89 ,  Y10S359/90

Abstract: A double-sided, holographic replica comprises a web of transparent, thermoplastic, sheet material having a separate series of off-axis-recorded, phase-modulated holograms pressed into each of the opposite surfaces, respectively, of the web. Oppositely disposed (front and rear) holograms are such as to provide angularly displaced reconstructed images, respectively, when a monochromatic read-out beam is transmitted through the web. The double-sided holographic replica is made by first pressing the web and a first holographic master between a first pair of heated calender rollers to form one replica on one surface of the web, and then pressing the web, while thermoplastically adhered to the first master, and a second holographic master between a second pair of heated calender rollers to form another replica on the other surface of the web. The first and second masters are subsequently cooled and separated from the web.

Abstract translation: 双面全息复印件包括透明的，热塑性的片材材料，其具有分别压入幅材的每个相对表面的单独的一系列离轴记录的相位调制全息图。 当单色读出光束通过幅材传输时，相对设置（前后）全息图分别提供角位移重构图像。 双面全息复制品通过首先在第一对加热的压光辊之间压制幅材和第一全息图母版，在幅材的一个表面上形成一个复制品，然后压制幅材，同时热塑性粘附到第一母版 以及在第二对加热的压光辊之间的第二全息图母版，以在幅材的另一表面上形成另一个复制品。 随后将第一和第二主体冷却并与网分离。

公开(公告)号：US3601465A

公开(公告)日：1971-08-24

申请号：US3601465D

申请日：1970-01-23

Applicant: RCA CORP

Inventor： HANNAN WILLIAM JAMES

IPC: G03H1/26 ,  G02B27/22

CPC classification number: G03H1/26

Abstract: A single picture is stored as a plurality of holograms, each on a succeeding frame of a storage tape. Each hologram is a recording of the information present in a different small area of the picture. During readout, the tape may be driven continuously relative to the readout beam and the reconstructed image thereupon made to appear as a scanned picture. The reconstruction may be made to occur on a stationary storage medium having storage properties such as a film or a scannable electronic storage means.

公开(公告)号：US3584147A

公开(公告)日：1971-06-08

申请号：US3584147D

申请日：1969-09-11

Applicant: RCA CORP

Inventor： FLORY ROBERT EARL ,  HANNAN WILLIAM JAMES

IPC: H04N5/253 ,  H04N3/36 ,  H04N3/38 ,  H04N5/86

CPC classification number: H04N3/38

Abstract: Light of a first color from a stroboscopic light source is transmitted forwardly toward a camera tube through a series arrangement of a first dichroic mirror, a condensing lens system, the image-bearing frames of a continuously moving motion picture film, a projecting lens system and a second dichroic mirror. Light of a second color from a continuous light source is reflected for transmission backwardly by said second dichroic mirror through said projecting lens system, a marginal strip of said film (in which is recorded information including synchronizing indicia) and said condensing lens system for reflection by said first dichroic mirror to a photodetector which responds to light of said second color representing said synchronizing indicia to develop triggering pulses for momentarily actuating said stroboscopic light source.