Joseph L Corkery

US Patent:

43097235, Jan 5, 1982

Filed:

Apr 14, 1980

Appl. No.:

6/140281

Inventors:

John O. Ryan - Cupertino CA
Joseph L. Corkery - San Carlos CA
Edward P. Sudyka - Santa Clara CA
Gerow D. Brill - Redwood City CA
Anne M. Reagan - Santa Clara CA
James R. Holzgrafe - Sunnyvale CA

Assignee:

Ampex Corporation - Redwood City CA

International Classification:

H04N 514
H04N 522

US Classification:

358163

Abstract:

Precise, point-by-point correction of spatial and shading errors in a camera television picture are performed manually. The errors to be corrected are determined by visually examining a picture on a video monitor, by selecting an area for error correction which area corresponds to the type and extent of the specific error selected for correction. A position command increments or decrements an address by preselected steps to locate a movable "cursor" which, in turn, identifies the area being corrected. A correction command retrieves the data from the area identified, and which contains the error, selectively increments or decrements the data in preselected steps, and stores the new data back in memory. The process continues until the operator is satisfied with the correction results. Correction thus may be made point-by-point, along horizontal or vertical lines or areas, in selected corner areas, etc.

US Patent:

44738536, Sep 25, 1984

Filed:

Jul 28, 1982

Appl. No.:

6/402713

Inventors:

Joseph L. Corkery - San Carlos CA

Assignee:

Sony Corporation - Tokyo

International Classification:

G11B 2710

US Classification:

360 722

Abstract:

An improved controller for a VTR is disclosed. The VTR has a time code reader and a tape time reader, each generating a signal representative of the time length of the material recorded on the tape. The time code reader generates a signal derived from the time code recorded on the tape. The tape time reader generates a signal derived from the signals generated by a tachometer, connected to the tape transport mechanism. An interpolated time code is generated by means which adds an offset value to this tachometer derived time data. The offset value is periodically calculated by means which determines the difference between the time code data and the tachometer time code data after first determining that the tape speed has exceeded a predetermined threshold speed for a predetermined period of time. If the tape speed has not exceeded this predetermined threshold speed, then the last calculated offset is added to the tachometer derived data.

US Patent:

43542433, Oct 12, 1982

Filed:

Apr 11, 1980

Appl. No.:

6/139512

Inventors:

John O. Ryan - Cupertino CA
Joseph L. Corkery - San Carlos CA

Assignee:

Ampex Corporation - Redwood City CA

International Classification:

G06F 15353
H04N 538

US Classification:

364515

Abstract:

Data for providing spatial and shading error correction signals during the operating mode of a television camera, are taken from a two dimensional array of correction points distributed across a television image during the camera setup mode and are stored as 8 bit words. The error correction signals extend smoothly (linearly) between the correction points. The smoothing is performed by selectively interpolating selected reference points on each video line to provide values which vary smoothly from one row of correction points to the next. A vertical interpolation circuit performs a vertical interpolation on a line-by-line basis, by adding signals produced by a multiplying D/A converter when loaded with the two values to be interpolated and weighted by factors related to the distance from each correction point. The results of the vertical interpolation circuit are fed to a horizontal interpolation circuit which ramps linearly from one reference point to the next, to provide the spatial and shading error correction output signals.

US Patent:

44596227, Jul 10, 1984

Filed:

Apr 1, 1982

Appl. No.:

6/364436

Inventors:

Joseph L. Corkery - San Carlos CA

Assignee:

Sony Corporation - Tokyo

International Classification:

G11B 1926
G11B 2702
H04N 5782

US Classification:

360 103

Abstract:

A videotape controller which, during a stunt learn mode activated by closing any one of a plurality of tape speed control switches, memorizes the tape speed switch settings at uniform intervals of time and then replays those tape speed control settings during an auto stunt mode. The current capacity of the memory storage during either mode is visually displayed.