Method and apparatus for hosting a network camera with image degradation

• US 8,026,944 B1
• Filed: 04/12/2001
• Issued: 09/27/2011
• Est. Priority Date: 04/12/2001
• Status: Expired due to Term

• Current Assignee: Sony Semiconductor Solutions Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sah, Adam D.
• Primary Examiner(s): CZEKAJ, DAVID J
• Application Number:
  US09/834,856
• Time in Patent Office: 3,820 Days
• Field of Search: 725/37, 725/74, 725/78, 725 82- 83, 725/86, 725/91, 725/95, 725/103, 725/105, 725/108, 725114-115, 348/135, 348143-144, 348152-159, 348/161, 348/169, 348/390.1
• US Class Current: 348/143
• CPC Class Codes: H04L 65/752 adapting media to network capabilities
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 67/025 for remote control or remote monitoring of applications
• CPC Class Codes: H04L 67/2895 Intermediate processing functionally located close to the data provider application, e.g. reverse proxies
• CPC Class Codes: H04L 67/5651 Reducing the amount or size of exchanged application data
• CPC Class Codes: H04L 67/62 Establishing a time schedule for servicing the requests
• CPC Class Codes: H04L 69/28 Timers or timing mechanisms used in protocols
• CPC Class Codes: H04N 7/181 for receiving images from a plurality of remote sources

Abstract

A method and apparatus for providing an improved Internet camera is described. The method of keeping a refreshed image from a camera on a user'"'"'s system comprises sending the image to the user'"'"'s system and refreshing the image periodically. The method further comprises after a period of time, degrading the image.

Claims

1. A method for displaying an image from a camera on a user'"'"'s system, the method comprising:

executing, by a processor, at a site remote from the user'"'"'s system, the steps of;

sending the image to the user'"'"'s system via a network;

refreshing the image periodically according to a refresh frequency rate;

maintaining a counter of a number of refreshes that have occurred and a timer of a refresh time since the last image refresh, the refresh frequency rate being evaluated based on the counter and the timer;

determining whether the user is inactive, and whether to refresh the image based on a value of the timer and the refresh frequency rate, and incrementing the counter when the image is refreshed;

adjusting image parameters over a period of time to produce a degraded image in response to a determination that the user is inactive;

periodically sending the degraded image, during the period of time, to the user'"'"'s system via the network when the refresh frequency indicates a time for an image refresh;

re-evaluating the refresh frequency rate when the counter reaches a preset threshold value, wherein the re-evaluation of the refresh frequency rate causes the rate to increase, decrease, or completely stop refreshing of the image; and

increasing quality of the degraded image upon receiving a user request to improve the quality of the degraded image.

2. The method of claim 1, wherein degrading the image comprises reducing the size of the image.

3. The method of claim 1, wherein degrading the image comprises decreasing resolution of the image.

4. The method of claim 1, wherein determining whether the user is inactive further comprises determining whether a certain period of time has elapsed.

5. The method of claim 4, wherein the certain period of time begins when the image was last refreshed.

6. The method of claim 4, wherein the certain period of time begins when the image was last sent to the user'"'"'s system.

7. The method of claim 1, wherein determining whether the user is inactive further comprises determining whether the user is using the user'"'"'s system.

8. The method of claim 1, wherein determining whether the user is inactive further comprises determining whether a screen saver has been activated on the user'"'"'s system.

9. The method of claim 1, wherein determining whether the user is active or inactive is performed periodically.

10. The method of claim 1, further comprising:

increasing the quality of the degraded image to produce a less-degraded image upon a determination that the user is active; and

sending the less-degraded image to the user'"'"'s system.

11. The method of claim 1, wherein refreshing the image is performed more frequently than determining whether to degrade the image.

12. The method of claim 1, wherein determining whether to degrade the image further comprises determining whether a certain period of time has elapsed, wherein the certain period of time begins upon a determination that the user is inactive.

13. The method of claim 12, further comprising:

increasing the quality of the degraded image to produce a less-degraded image upon a determination that the user is active; and

sending the less-degraded image to the user'"'"'s system.

14. The method of claim 1, wherein the network is the Internet.

15. The method of claim 1, further comprising determining whether the user has provided any input into the user'"'"'s system.

16. The method of claim 1, wherein the image is captured at a first location, wherein the user is located at a second location, wherein the first location is remote from the second location, wherein the user'"'"'s system is configured to display the image.

17. A computer-readable storage medium storing instructions that, when executed by a processor, perform a method for displaying an image from a camera on a user'"'"'s system, the method of comprising:

sending the image to the user'"'"'s system via a network;

refreshing the image periodically according to a refresh frequency rate;

maintaining a counter of a number of refreshes that have occurred and a timer of a refresh time since the last image refresh, the refresh frequency rate being evaluated based on the counter and the timer;

determining whether the user is inactive, and whether to refresh the image based on a value of the timer and the refresh frequency rate, and incrementing the counter when the image is refreshed;

adjusting image parameters over a period of time to produce a degraded image in response to a determination that the user is inactive;

periodically sending the degraded image, during the period of time, to the user'"'"'s system via the network when the refresh frequency indicates a time for an image refresh;

re-evaluating the refresh frequency rate when the counter reaches a preset threshold value, wherein the re-evaluation of the refresh frequency rate causes the rate to increase, decrease, or completely stop refreshing of the image; and

increasing quality of the degraded image upon receiving a user request to improve the quality of the degraded image.