Power-Saving Laser Pointer Mouse PATENT: 7888822 US Classification 323/299: under the class323: “Electricity: Power Supply or Regulation Systems” US Classification.

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Presentation transcript:

Power-Saving Laser Pointer Mouse PATENT: US Classification 323/299: under the class323: “Electricity: Power Supply or Regulation Systems” US Classification 307/130: under the class307: “Electrical Transmission or Interconnection Systems” REVIEWED BY: BENJAMIN FEIFKE, OPT310 REVIEWED 10/8/2014 Note: all images in this powerpoint are from the same source: Su, Chen-Nan, Hung-Ming Lin, and Yi-Guang Chen. Power-Saving Laser Pointer Mouse. Primax Electronics Ltc, Taipei (TW), assignee. Patent Sept Print.

Prior Art With increasing technology interfaces with presentation methods, such as powerpoint slides, new handheld presentation device was necessary. Power-saving laser pointer mouse. Reference patents include: ◦the mouse model that is being applied ◦a method for communicating battery voltage to the applied microcontroller, and generating different output signals from it, along with the computer code that generates it. ◦Other similarly relevant technology, such as another model for the circuit structure and microcontroller and... What this patent changes: it describes a novel method for regulating the signal waveform being sent, from microcontroller, to the output led of the laser pointer.

A New Waveform: prior art, LED control Different output waveforms for controlling led. High frequency controlled interval exposure Waveform prior art: Good: duration T ‘unperceivable’ to human eyes Problems: ◦Left spent too much power; right caused dimming/blinking.

A New Waveform: power-saving led output control Three Claims 1.The method, specifically changing analog input voltage to digital output 2.Circuit for battery-microcontroller-LED system: 3.Waveforms: adjustable LED exposure intervals for different battery levels a.1.5V = new battery, different battery saving ‘modes’ b.Next page 1.5V = new battery 201: Battery 202: Microcontroller 203: LED 2021: switch signal (signal waveform)

1.5V > V0 > 1.2V: exposure time equals T— always on 1.2V > V0 > 1.1V: exposure time equals.67 T 1.1V > V0 > 1.0V: exposure time equals.5 T 1.0V > V0 > 0V: exposure time equals.33 T 3.