Video camera and method for generating time varying video images in response to a capture signal

• US 5,784,099 A
• Filed: 09/13/1994
• Issued: 07/21/1998
• Est. Priority Date: 09/13/1994
• Status: Expired due to Term

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Lippincott, Louis A.
• Primary Examiner(s): Kostak, Victor R.
• Application Number:
  US08/305,153
• Time in Patent Office: 1,407 Days
• Field of Search: 348/13, 348/14, 348/15, 348/16, 348/18, 348/17, 348/19, 348/220, 348/222, 348/228, 348/231, 348/232, 348/415, 348/412, 348/439, 348/719, 348/22, 348/23, 348/207, 348/552, 348/153 , 348/154
• US Class Current: 348/222.1
• CPC Class Codes: H04N 23/60 Control of cameras or camera modules
• CPC Class Codes: H04N 7/15 Conference systems
• CPC Class Codes: H04N 7/188 Capturing isolated or intermittent images triggered by the occurrence of a predetermined event, e.g. an object reaching a predetermined position signal generation from motion picture films H04N5/253

Abstract

A method and video camera for generating time varying video images. A first capture signal is received from a video processing system by a video camera, which captures a first set of one or more video frames in response to the first capture signal and transmits the first set of one or more video frames to the video processing system.

Claims

1. A method for generating time varying video images, comprising the steps of:

(a) receiving, with a video camera, a first capture signal from a video processing system;

(b) capturing a first video frame with the video camera in response to the first capture signal;

(c) transmitting, with the video camera, the first video frame to the video processing system, wherein the video processing system processes the first video frame; and

(d) receiving, with the video camera, a second capture signal from the video processing system at a time during the processing of the first video frame.

2. The method of claim 1, wherein:

steps (a)-(d) are repeated for a plurality of consecutive capture signals; and

the durations of time between different consecutive pairs of the consecutive capture signals vary.

3. The method of claim 2, wherein:

step (b) comprises the steps of;

(1) capturing a first set of analog video signals corresponding to the first video frame in response to the first capture signal; and

(2) digitizing the first set of analog video signals to generate the first video frame.

4. A video camera for generating time varying video images, comprising:

(a) means for receiving a first capture signal from a video processing system;

(b) means for capturing a first video frame in response to the first capture signal;

(c) means for transmitting the first video frame to the video processing system, wherein the video processing system processes the first video frame; and

(d) means for receiving a second capture signal from the video processing system at a time during the processing of the first video frame.

5. The video camera of claim 4, further comprising means for repeating the functions of means (a)-(d) for a plurality of consecutive capture signals, wherein the durations of time between different consecutive pairs of the consecutive capture signals vary.

6. The video camera of claim 5, wherein:

means (b) comprises;

(1) means for capturing a first set of analog video signals corresponding to the first video frame in response to the first capture signal; and

(2) means for digitizing the first set of analog video signals to generate the first video frame.

7. A video camera for generating time varying video images, comprising:

(a) means for receiving a first capture signal from a video processing system, wherein the first capture signal specifies a first frame capture rate for the video camera;

(b) means for capturing a first plurality of video frames in response to the first capture signal;

(c) means for transmitting the first plurality of video frames to the video processing system, wherein the video processing system processes the first plurality of video frames; and

(d) means for receiving a second capture signal from the video processing system, to request the video camera to capture a second plurality of video frames, wherein the second capture signal specifies a second frame capture rate based on the status of the processing of the first plurality of video frames.

8. The video camera of claim 7, further comprising means for repeating the functions of means (a)-(d) for a plurality of consecutive capture signals, wherein each of the plurality of consecutive capture signals specifies a respective frame capture rate for the video camera.

9. The video camera of claim 8, wherein the frame capture rates specified by a consecutive pair of the plurality of consecutive capture signals are not the same.

10. In a video camera, a method for generating time varying video images, comprising the steps of:

(a) receiving a first capture signal from a video processing system, wherein the first capture signal specifies a first frame capture rate for the video camera;

(b) capturing a first plurality of video frames in response to the first capture signal;

(c) transmitting the first plurality of video frames to the video processing system, wherein the video processing system processes the first plurality of video frames; and

;

(d) receiving a second capture signal from the video processing system, to request the video camera to capture a second plurality of video frames, wherein the second capture signal specifies a second frame capture rate based on the status of the processing of the first plurality of video frames.

11. The method of claim 10, wherein:

steps (a)-(d) are repeated for a plurality of consecutive capture signals; and

each of the plurality of consecutive capture signals specifies a respective frame capture rate for the video camera.

12. The method of claim 11, wherein the frame capture rates specified by a consecutive pair of the plurality of consecutive capture signals are not the same.

13. An apparatus for generating time varying video images, comprising:

(a) a video processing system; and

(b) a video camera;

wherein;

the video processing system transmits a first capture signal to the video camera;

the video camera captures a first video frame in response to the first capture signal;

the video camera transmits the first video frame to the video processing system;

the video processing system processes and time stamps the first video frame; and

the video processing system transmits a second capture signal to the video camera to request a second video frame at a time during the processing of the first video frame.

14. The apparatus of claim 13, wherein:

said transmitting of the first capture signal, said capturing of the first video frame, said transmitting of the first video frame, said processing and time stamping of the first video frame, and said transmitting of the second capture signal are repeated for a plurality of consecutive capture signals; and

the durations of time between different consecutive pairs of the consecutive capture signals vary.

15. The apparatus of claim 14, wherein the video camera captures the first video frame in response to the first capture signal by capturing a first set of analog video signals corresponding to the first video frame in response to the first capture signal and digitizing the first set of analog video signals to generate the first video frame.

16. An apparatus for generating time varying video images, comprising:

(a) a video processing system; and

(b) a video camera;

wherein;

the video camera receives a first capture signal from the video processing system that specifies a first frame capture rate;

the video camera captures a first plurality of video frames at the first frame capture rate in response to the first capture signal;

the video camera transmits the first plurality of video frames to the video processing system;

the video processing system processes the first plurality of video frames; and

the video camera receives a second capture signal from the video processing system, to request the video camera to capture a second plurality of video frames, wherein the second capture signal specifies a second frame capture rate based on the status of the processing of the first plurality of video frames.

17. The apparatus of claim 16, wherein:

said receiving a first capture signal, said capturing a first plurality of video frames, said transmitting the first plurality of video frames, said processing the first plurality of video frames, and said transmitting a second capture signal are repeated for a plurality of consecutive capture signals; and

each of the plurality of consecutive capture signals specifies a respective frame capture rate.

18. The apparatus of claim 17, wherein the frame capture rates specified by a consecutive pair of the plurality of consecutive capture signals are not the same.