Television – Camera – system and detail – Remote control
Reexamination Certificate
1999-02-04
2001-08-28
Garber, Wendy R. (Department: 2612)
Television
Camera, system and detail
Remote control
C348S142000, C348S169000, C250S206200, C352S179000
Reexamination Certificate
active
06281930
ABSTRACT:
A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to remote control of a camera and particularly to the generation of commands to controllers to provide for one or more subjects to be within the camera field of view especially in video systems.
2. Prior Art
Video teleconferencing systems are well known to the prior art. However, the ability for one or more subjects to be within the associated camera field of view and to change which subjects are within the field of view in real time generally requires manual control of the camera. Moreover, focus, zoom and other field of view variables must also be controlled simultaneously. None of the existing systems has the capability and flexibility to provide the optimum level of performance desired of modern systems.
SUMMARY OF THE INVENTION
In one aspect of the present invention there is provided a method of controlling the field of view of at least one camera included in an automatic control system comprising the steps of: selecting values for one or more field of view variables from the following list of variables that define the field of view of a camera to create a field of view unique to each subject;
1. field of view position variables,
2. field of view perspective variables,
3. camera imaging variables, and
4. automatic control system variables; defining share view as the field of view of a camera created by combining the respective coordinates and field of view variables associated with each of at least two subjects; requesting a share view for the respective subject that is identifiable as such by the automatic control system; and controlling the camera by the automatic control system to provide for the field of view requested in accordance with the values selected.
Other aspects of the invention include the steps of: establishing a location preset for each subject in terms of the coordinates for the position of each subject; issuing a command by one subject for controlling the camera by the automatic control system to provide the field of view of the camera to be the location preset of one subject; issuing a command from a second subject requesting share view for the first and second subjects;recalling the location preset for the second subject; determining the relative positions of the location presets for the first and second subject; calculating the values of the field of view variables of the camera necessary to create a share view for the first and second subjects; and controlling the field of view of the camera to provide for a share view for the first and second subjects. Further aspects include calculating the respective angle of view of the camera for each location preset; and issuing a command from a third subject requesting share view for the first, second and third subjects; recalling the location presets for each of each subject to be in share view; determining the relative positions of the location presets for each subject; calculating the values of the field of view variables of the camera necessary to create the requested share view; and controlling the field of view of the camera to provide the requested share view. Each one of the three subjects request to be removed from the share view and a share view for the other two subjects will be created.
Other steps include defining the group angle the angle of view of the camera required to include all subjects and creating group view. The system can alternate between share view and group view as required.
REFERENCES:
patent: 5504477 (1996-04-01), Whitright
patent: 5675404 (1997-10-01), Nakazawa
patent: 5845009 (1998-12-01), Marks
patent: 5917553 (1999-06-01), Honey
patent: 5963250 (1999-10-01), Parker et al.
patent: 5995763 (1999-11-01), Posa
Marvin Philip A.
Parker Jeffrey L.
Garber Wendy R.
ParkerVision, Inc.
Vu Ngoc-Yen
Yeager Arthur G.
LandOfFree
System and method for controlling the field of view of a camera does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for controlling the field of view of a camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for controlling the field of view of a camera will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2452574