Cursor control device
Two dimensional optical position indicating apparatus
Optical mouse with X and Y line patterns on separate planes
Wireless mouse apparatus
Retroreflective optical communication system
Optical translator device
Optical input cursor device using optical grid means
Detector system for optical mouse
ApplicationNo. 632950 filed on 08/04/2000
US Classes:345/166, Optical detector345/156, DISPLAY PERIPHERAL INTERFACE INPUT DEVICE398/107, Bidirectional (i.e., monitoring or acknowledge)398/118, OPTICAL COMMUNICATION OVER FREEE SPACE398/169, Retroreflection398/170Retroreflection
ExaminersPrimary: Jankus, Almis R.
Assistant: Tran, Henry N.
Attorney, Agent or Firm
International ClassG09G 005/08
AbstractAn optical retroreflective remote control used in combination with electronic apparatus, such as a VCR or television set is disclosed. The controlled apparatus includes a light or radiation source and a retroreflected light detector as well as means for detecting any modulation of the light emitted as a control signal for the electronic apparatus. The remote control includes a portable housing with a window for receiving light from the electronic apparatus and for retroreflecting modulated light return by the remote controller. Manual controls or push buttons on the housing operate to block or modulate certain portions, i.e., wavelengths of the incident light enter in the window before the light reaches a retroreflector. Returned light or radiation from the controller as modified constitutes a control signal for the electronic apparatus. The remote control requires no power supplies or light or radiation sources.