Robert Scott Lentz

US Patent:

39316386, Jan 6, 1976

Filed:

Jan 10, 1974

Appl. No.:

5/432363

Inventors:

Robert A. Lentz - Del Mar CA
James U. Lemke - Del Mar CA

Assignee:

Eastman Technology, Inc. - Rochester NY

International Classification:

H04N 579

US Classification:

360 36

Abstract:

Time base instability of signals in a train thereof is corrected by use of analog shift registers. As employed in the correction of time base instability of video signals, paired analog shift registers are used. While one register has samples of one video line signal clocked into it at a rate corresponding to its time base instability, the other register clocks out, at a uniform rate, analog signals of the previous line, and vice versa.

US Patent:

39328880, Jan 13, 1976

Filed:

Jun 10, 1974

Appl. No.:

5/477583

Inventors:

James U. Lemke - Del Mar CA
Robert A. Lentz - Del Mar CA
Charles E. Wright - Solana Beach CA

Assignee:

Eastman Technology, Inc. - Rochester NY

International Classification:

H04N 579

US Classification:

360 36

Abstract:

Time base instability of signals in a train thereof is corrected by use of analog shift registers. As employed in the correction of time base instability of video signals, plural analog shift registers are used. Two clock rates are used, respectively, to clock video signals into and out of the analog shift registers. The clock-in rate is set so that samples of a video signal which has been stretched a predetermined amount may load all stages of an analog shift register within the duration of the stretched signal. The clock-out rate is set to unload all stages of an analog shift register within the nominal duration of a video signal.

US Patent:

51181126, Jun 2, 1992

Filed:

Dec 24, 1990

Appl. No.:

7/633321

Inventors:

Walter Bregman - Del Mar CA
Robert A. Lentz - Encinitas CA
Angus R. Colson - Jamul CA
Jan Schultz - La Jolla CA
Michael Cavanaugh - La Jolla CA

Assignee:

S & B Enterprises, Inc. - Del Mar CA

International Classification:

A63B 6936

US Classification:

273183A

Abstract:

A system for analyzing the balance of a golfer during a golf swing and to determine weight shifts from one foot to the other and between the heel and toe of each foot during a golf swing. Basically the system comprises two foot pads capable of measuring weight on each pad and on the front and rear portions of each pad, a display for displaying weight information in digital and/or graphical form, a sound sensor for sensing the impact of a golf club against a golf ball and a microprocessor system for receiving information from the pads and generating the display. In use, a golfer positions the foot pads where his feet would be in his normal golf stance, arranges the display in front of the pads a safe distance away, positions the cable between footpads and display out of the way and places a normal golf ball on a tee or on the ground the appropriate distance from the footpads. The unit is turned on and parameters are set, the golfer stands on the footpads and then takes his normal swing at the golf ball. Typically, the display will show the weight on the pads at full backswing, at impact (as triggered by the sound of club hitting ball) and at full follow through.

US Patent:

41930983, Mar 11, 1980

Filed:

Mar 24, 1977

Appl. No.:

5/780945

Inventors:

James A. Bixby - San Diego CA
James U. Lemke - Del Mar CA
Robert A. Lentz - Rancho Santa Fe CA

Assignee:

Spin Physics, Inc. - San Diego CA

International Classification:

H04N 519
G11B 5012
G11B 1506

US Classification:

360 10

Abstract:

A system for playback of segmented video information on a tape employs an ancillary recording medium which is rotationally driven at a rotation rate of the primary segment scanning apparatus. Each segment of a video field is recorded in a respective track of the ancillary medium, the information of one field being recorded over the information of another field. By recording only signals of a predetermined quality on the ancillary recording medium, play back of video information from the ancillary medium will produce a coherent display on a display monitor, regardless of the rate at which the tape is run. This is possible because of the one-to-one correspondence between the rotary rates of the scanner and the ancillary medium. Each coherent display is comprised of information from one or a number of video fields.

US Patent:

39627250, Jun 8, 1976

Filed:

Oct 29, 1974

Appl. No.:

5/519178

Inventors:

James U. Lemke - Del Mar CA
Robert A. Lentz - Del Mar CA

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

H04N 578
H04N 330

US Classification:

360 36

Abstract:

A wholly self-contained video camera is disclosed as being cartridge-loaded with magnetic tape for picture taking. Sweep rates for the camera sensor are slaved to the tape drive of the camera; and little or no speed regulation is associated with the camera tape drive. The tape employed in the camera has a pre-recorded signal which is detected for sweep rate control purposes. Playback of video information recorded by the camera is accomplished by running the tape during playback at the "pre-record" speed.

US Patent:

39478742, Mar 30, 1976

Filed:

Oct 29, 1974

Appl. No.:

5/519359

Inventors:

Robert A. Lentz - Del Mar CA

Assignee:

Eastman Technology, Inc. - Rochester NY

International Classification:

H04N 5795

US Classification:

360 36

Abstract:

Time base instability of signals in a train thereof is corrected by use of analog shift registers. As employed in the correction of time base instability of video signals, plural analog shift registers are used. The same clock rate is used, respectively, to clock video signals into and out of analog shift registers. The clock rate is set so that samples of a video signal which has a normal duration may load all stages of an analog shift register within the duration of the normal signal. Thus, samples of a stretched signal fully load all stages of the analog shift register, the trailing part of such stretched signal being discarded. Conversely, a video signal which has been compressed, although being fully loaded into the analog shift register, loads less than all of the analog shift register stages.