Optical jog wheel

作者: Siang Leong Foo , Chee Foo Lum , Weng Fei Wong

DOI:

关键词: Communication channelSignalCode (cryptography)Track (disk drive)RayDetectorEncoderOpticsEngineeringCommon emitter

摘要: A user navigational apparatus. The apparatus includes a code wheel and an encoder. is coupled to dial. track of alternating reflective non-reflective sections. optical encoder emitter detector. generates light signal incident on the wheel. detector detects reflected signal. corresponds portion that off sections track. also channel corresponding Embodiments this type achieve reduced thickness compared conventional implementations jog wheels.

参考文章(22)
Thomas J. Lugaresi, Variable pitch position encoder ,(1991)
Siang Leong Foo, Yee Loong Chin, Dual-axis optical encoder device ,(2003)
Dominique Ho, Low profile optocouplers ,(2002)
Nobuyuki Araki, Takeyuki Amari, Tomohiro Irinatsu, Vehicular dialogue interface with centralized commander ,(2004)
Alva E. Hare, Keith M. Hinrichs, William G. Thorburn, Absolute encoder employing concatenated, multi-bit, interpolated sub-encoders ,(2004)
David D Bohn, Eugene A Miksch, Ruth Ann Davies, Keith M Mahoney, Contact image sensor with light guide having least reflectivity near a light source ,(2000)
Chiang Sun Cheah, Directional input device with knob ,(2006)
Yoichi Ohmura, Toru Oka, Optical rotary encoder ,(2004)