Optical code reader mouse

An optical code reader mouse device utilizes an imager, such as a CCD or CMOS imaging array to image printed indicia including symbols. The optical code reader may be utilized as a code reader, a video camera, to indicate relative movement between the device and a surface, and for other various imaging functions. Thus, the optical code reader may also have no internally moving parts utilized for sensing relative movement. The optical code reader may function similar to a conventional mouse, except that the relative motion is sensed by the imager. The optical code reader may detect the relative movement of artifacts across its field of view in any arbitrary direction within the focal length setting of the device. The optical code reader may also be incorporated into a laptop and a pen based computer, and a PDA. Relative motion may be sensed when moving either the housing or the surface itself, or both, relative to the other. In the portable data processing embodiments, the optical code reader may also be utilized as a code reader a video camera, to indicate relative movement between the device and a surface, and for other various fringing functions. The surface may include a finger, a hand, or the "pen" of the pen based computer, or almost any object within the field of view. Also, various modes and mcthods described herein may be utilized with the optical code reader.