Computer input device with time-difference-type bi-coordinate output, time-difference-type data input processing method, and sensor thereof

• Main Authors: LIN TSUNG-HSI, LAI CHIEN-MO
• Format: Patent
• Language: English
• Published: 25.03.2010
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CALCULATING; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION ANDCOMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION ANDCOMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWNENERGY USE; COMPUTING; COUNTING; CRYPTOGRAPHY; DISPLAY; EDUCATION; ELECTRIC DIGITAL DATA PROCESSING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PHYSICS; SEALS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

A computer input device with a time-difference-type bi-coordinate output, a time-difference-type data input processing method, and a sensor thereof. The computer input device includes a first light source for producing a first projecting beam in an alternating on and off manner; a second light source for producing a second projecting beam when the first light source is turned off; and a sensor module. The sensor module includes an optical signal receiving region for receiving the first projecting beam to obtain a first image data and receiving the second projecting beam to obtain a second image data; a control unit for comparing the first image data obtained at different time points to compute a first displacement data and comparing the second image data obtained at different time points to compute a second displacement data; and a storage unit for storing the first displacement data and the second displacement data.