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Sensors/MEMS??

PC mice sensors support tilt-wheel function in Vista

Posted: 07 Dec 2007 ?? ?Print Version ?Bookmark and Share

Keywords:sensor? PC mice? tilt-wheel function?

Apexone Microelectronics has launched a new sensor SoC family consisting of three productsthe A2633, A2635 and A2636. According to the company, these three devices make up the industry's most complete line of sensor SoCs for the PC mouse. Features integrated in A263X line include optical sensor array, DSP, USB transceiver, PS/2 transceiver, clock generator, voltage regulator and support for Windows Vista tilt-wheel function.

Some of the key IP innovations include Surface Quality Algorithm (SQA) and Enhanced Motion Sensing (EMS). SQA is a surface quality selection algorithm that picks up better, more useful image frames and discards bad, less meaningful ones. EMS is an optical motion sensing process with a proprietary methodology to predict motion direction using a special algorithm to control LEDs for better surface reading. It also encompasses a unique algorithm to reduce noise and stabilize the cursor. In addition, the product uses a proprietary image DSP algorithm to extract information from noisy data, which improves surface reading.

Apexone claims to be the first to introduce to the market a crystal-free feature in an ASIC controller, which eliminates the need to have external crystals to drive the sensor and the controller.

Vista support
The A2635 is also claimed to be the world's first commercially available single-chip sensor SoC that supports the new Windows Vista tilt-wheel function. The A2633 is a 3D3B PS/2 optical mouse sensor SoC with up to 1600dpi resolution support. The A2636 adds an integrated USB interface and is pin-compatible with the A2633. PC mouse designers can use the same PCB for both A2633 and A2636.

"The A263X potentially will trigger a massive rapid transition to SoC-based PC mouse design, bringing quality-performance PC mice to consumers," says Ben Lee, Apexone chief operating officer.

The A2633 is already in volume production. A2636 and A2635 will be available Q1 2008. Samples, demonstration units and pricing are available upon request.




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