US 7,537,351 B2
Image forming projection system and projector using input and output signals
Toshiki Saito, Suwa (Japan)
Assigned to Seiko Epson Corporation, Tokyo (Japan)
Filed on Mar. 17, 2006, as Appl. No. 11/377,190.
Claims priority of application No. 2005-087915 (JP), filed on Mar. 25, 2005.
Prior Publication US 2006/0215126 A1, Sep. 28, 2006
Int. Cl. G03B 21/14 (2006.01); G06K 9/40 (2006.01)
U.S. Cl. 353—70  [382/255; 345/204] 6 Claims
OG exemplary drawing
 
1. A projection system comprising:
a projector that modulates the light emitted from a light source according to image information to form an optical image and projects the image in a magnified form; and
a computer connected to the projector via a signal input and output terminal,
wherein the projector projects the image according to the image information output from the computer; wherein
the projector includes:
an adjustment operation section that adjusts the settings on the projector;
an adjustment operation identification section that identifies the adjustment operation indicated by an adjustment operation signal output from the adjustment operation section;
an adjustment-signal generating section that generates an image adjustment signal on the basis of the adjustment operation identified by the adjustment operation identification section; and
a two-way communication section that sends the generated image adjustment signal to the computer, and receives a signal from the computer; and
the computer includes:
a two-way communication section that receives the image adjustment signal from the projector, and sends a signal; and
an image processor that processes an image signal to be output, according to the received image adjustment signal.