公开(公告)号：US3576546A

公开(公告)日：1971-04-27

申请号：US3576546D

申请日：1968-06-03

Applicant: RCA CORP

Inventor： HEYMAN PHILIP M ,  KISS ZOLTAN J

IPC: G11C13/04 ,  G02F1/36

CPC classification number: G11C13/041

Abstract: Memories employing a material whose photoconductivity can be altered by electromagnetic radiation such as light and which store their new value of photoconductivity upon removal of the light. Information is written into the memories optically and is read out of the memories by optical selection and electrical signal-sensing.

公开(公告)号：US3423654A

公开(公告)日：1969-01-21

申请号：US3423654D

申请日：1967-05-02

Applicant: RCA CORP

Inventor： HEILMEIER GEORGE H ,  HEYMAN PHILIP M

IPC: H01L23/29 ,  H01L29/00 ,  H03K3/356 ,  H03K3/45 ,  H01L11/00 ,  H01L15/00

CPC classification number: H03K3/45 ,  H01L23/29 ,  H01L29/00 ,  H01L2924/0002 ,  H03K3/356 ,  H01L2924/00

公开(公告)号：CA1161954A

公开(公告)日：1984-02-07

申请号：CA374768

申请日：1981-04-06

Applicant: RCA CORP

Inventor： JOHN GUNTER ,  HEYMAN PHILIP M ,  BORTFELD DAVID P

IPC: G06K19/06 ,  G11B19/12 ,  G11B7/00 ,  G11B5/82

Abstract: RCA 75,269 A video disc record suitable for use with a video disc player apparatus is provided with a label for identifying the program material stored on the surface of the record. The label is formed in a machine readable format which comprises grooves in the surface of the record. In one format whorls of a spiral groove of a first pitch are spaced alternately with whorls of a spiral groove of a second pitch. A readout apparatus comprises a light beam which is arranged to scan the grooved label and a detector which is arranged to sense the light beam reflected from the disc record surface. Light striking a grooved section of first pitch is reflected in a substantially specular direction while light striking a grooved section of second pitch is substantially scattered out of the specular direction. The detector is arranged to collect the light reflected into the specular direction.

公开(公告)号：DD153259A5

公开(公告)日：1981-12-30

申请号：DD22404380

申请日：1980-09-22

Applicant: RCA CORP

Inventor： HEYMAN PHILIP M ,  QUINN ROBERT L

IPC: G06K19/06 ,  B24C1/04 ,  G06K1/12 ,  H01J9/00 ,  H01J29/88

Abstract: A workpiece having a machine-readable coded marking recessed into the surface thereof. The workpiece comprises a main body and a thin integral coating in the area of the marking. The marking comprises a plurality of related marks, such as a bar-code marking, which are recessed through the coating and which have substantially different light reflectances than the surrounding surface. The workpiece may include an integral undercoating between the coating and the main body with marks recessed into, but not through, the undercoating. The marks may be made by selectively removing material, as by abrasion or ablation, from defined surface areas and through the coating.

公开(公告)号：CA1226476A

公开(公告)日：1987-09-08

申请号：CA462814

申请日：1984-09-10

Applicant: RCA CORP

Inventor： HEYMAN PHILIP M

IPC: B41F17/34 ,  B41F17/00 ,  B41K3/04 ,  B41K3/16 ,  B41K3/26 ,  B41M1/10 ,  B41N1/00 ,  B41F31/00

Abstract: In an intaglio printing method, the steps of providing an intaglio inking plate having a surface and means for producing different prescribed patterns of shallow depressions therein, producing a first prescribed pattern of depressions in said plate surface, filling said depressions with ink, transferring ink from the pattern of filled depressions to a transfer surface, altering the plate surface to provide a second pattern of shallow depressions therein, and then repeating the step of filling the depressions with ink and transferring an ink pattern to a transfer surface.

公开(公告)号：CA1153117A

公开(公告)日：1983-08-30

申请号：CA359972

申请日：1980-09-09

Applicant: RCA CORP

Inventor： HEYMAN PHILIP M ,  QUINN ROBERT L

IPC: G06K19/06 ,  B24C1/04 ,  G06K1/12 ,  H01J9/00 ,  H01J29/88 ,  G06K9/00

Abstract: RCA 73,880 A workpiece having a machine-readable coded marking recessed into the surface thereof comprises a main body and a thin integral coating in the area of the marking. The marking comprises a plurality of related marks, such as in a bar-code marking, which are recessed through the coating and which have substantially different light reflectances than the surrounding surface. The workpiece may include an integral undercoating between the coating and the main body with marks recessed into, but not through, the undercoating. The marks may be made by selectively removing material, as by abrasion or ablation, from defined surface areas and through the coating.

公开(公告)号：CA1139951A

公开(公告)日：1983-01-25

申请号：CA351723

申请日：1980-05-12

Applicant: RCA CORP

Inventor： HEYMAN PHILIP M

IPC: B65G47/49 ,  B24C1/04 ,  G06K7/01 ,  B24C1/06 ,  B24C3/00

Abstract: RCA 73,360 A workpiece has a machine-readable coded marking abraded into the surface thereof. The marking comprises a plurality of related marks, such as a bar-code marking, which have substantially different light reflectances than the surrounding surface. The marks may be made by moving a means for abrading a defined surface area along a particular path with respect to the surface to be marked. The abrading means is selectively activated or deactivated according to a prearranged program to selectively abrade the surface.

公开(公告)号：PL224363A1

公开(公告)日：1981-03-13

申请号：PL22436380

申请日：1980-05-20

Applicant: RCA CORP

Inventor： HEYMAN PHILIP M

IPC: B24C1/04 ,  B65G47/49 ,  G06K7/01 ,  B41M

Abstract: A workpiece having a machine-readable coded marking abraded into the surface thereof. The marking comprises a plurality of related marks, such as bar-code marking, which have substantially different light reflectances than the surrounding surface. The markings may be made by moving a means for abrading a defined surface area along a particular path with respect to the surface to be marked. The abrading means is selectively activated or deactivated according to a prearranged program to selectively abrade the surface.