Single split frame mode for a fast frame recorder

• US 5,239,418 A
• Filed: 05/11/1992
• Issued: 08/24/1993
• Est. Priority Date: 10/17/1989
• Status: Expired due to Fees

• Current Assignee: Eastman Kodak Company
• Original Assignee: Eastman Kodak Company
• Inventors: Cooper, Todd, Tyler, Edward
• Primary Examiner(s): Sniezek, Andrew L.
• Application Number:
  US07/884,317
• Time in Patent Office: 470 Days
• Field of Search: 360/10.3, 360/33.1, 360/9.1, 358/134, 358/137, 358/312, 358/335, 358/213.28, 358/213.31, 358/213.27, 358/183, 358/22
• US Class Current: 386/200
• CPC Class Codes: H04N 5/77 between a recording apparatus and a television camera
• CPC Class Codes: H04N 9/7973 by dividing the luminance or colour component signal samples or frequency bands among a plurality of recording channels H04N9/804, H04N9/825 take precedence
• CPC Class Codes: H04N 9/8227 the additional signal being at least another television signal

Abstract

A fast frame recorder records a scene at a fast frame rate and displays it at a slower frame rate to produce a slow motion replay of the scene. The recorder includes a technique for recording a plurality of split frames of the scene during each frame period to effect an increased frame rate and for displaying the split frames of the scene on a video monitor either simultaneously or sequentially.

Claims

1. Video reproduction apparatus comprising:

an imager including an array of photosites arranged in rows thereof;

means for reading out said array of photosites in blocks of photosites wherein a plurality of said blocks are each comprised of a respective plurality of photosite rows within each block to produce an output frame signal comprised of blocks of information in a serial format with each block of information being comprised of a plurality of parallel lines of video information that correspond to the photosite rows in each block;

means for selecting a number of said blocks of photosite rows of a frame signal for a readout as a partial frame wherein the total number of blocks in a frame signal divided by said selected number of blocks is an integer N;

means for producing successive pluralities of partial frames of information by reading out said selected number of blocks N times for each frame signal of said imager;

a video display;

control means for controlling said display to selectively operate in a first mode wherein said N partial frames of a frame signal are displayed simultaneously on said display and in a second mode wherein said N partial frames of a frame signal are displayed sequentially on said display such that only one said partial frames is displayed on said video display at any time and each of said N partial frames are displayed consecutively.

2. The apparatus of claim 1 including magnetic tape record/reproduce means for sequentially recording and reproducing said partial frames of information longitudinally on magnetic tape;

memory means for storing said partial frames of a frame signal reproduced from said magnetic tape; and

wherein said control means includes means for selectively reading out said memory means in said first mode to simultaneously display on said display all of the partial frames of a frame signal and in said second mode to sequentially display on said display each partial frame of a frame signal.

3. The apparatus of claim 1 wherein said video display has a display region including partial display regions and wherein in said second mode said partial frames are sequentially displayed in the same partial display region of said display.