Qualcomm Incorporated

William Yee-Ming Huang

Suhail Jalil

Qiang Gao

Hsun Wei David Wong

Teresa Ka Ki Ng

Rex Wang

Carol King Mui Law

Mohamed Ahmed

Raghukul Tilak

Ning Bi

Harinath Garudadri

Yingyong Qi

Andrew P Dejaco

Shizhong Liu

Chienchung Chang

Narendranath Malayath

David Puig Oses

Charles Seunghwan Han

Phan L Do

Systems, methods, and devices for reducing shadow effects in touch systems are contained herein. In one aspect, a method of reducing shadow effects in a touch system is disclosed. The method includes receiving a touch input on a touch interface, determining a difference between a weighted mean of the touch input and an arithmetic mean of the touch input and adjusting an estimated touch position of the touch input based on the difference.

System and method for reducing shadow effects in touch systems

Systems and methods are disclosed for determining a touch position from data received from a touch panel. In one implementation, an apparatus for processing a touch input signal includes a processor that may be configured for parallel processing, a touch device, a memory, operably connected to the processor, and configured to store processor instructions. The processor instructions can configure the processor to receive a plurality of data points corresponding to a plurality of touch events on the touch device, determine a center of mass estimate from the plurality of data points, determine a search radius of center of mass estimate, and determine an optimal touch point position based on the center of mass estimate and the search radius using the processor.

Optimization for host based touch processing

Lower report rates are desirable in touch devices to minimize power consumption. However, lower report rates lead to inaccurate and untimely depiction of a user's touch inputs on a touch display device. Disclosed are methods and apparatus for using a lower report rate; while maintaining substantially the same or better user experience achieved by using a higher report rate.

Method and apparatus for improving power consumption on a touch device

The presence of moisture on a touch screen device can mimic a user's touch causing false input detection and recognition. Disclosed are systems and methods for detecting the presence of moisture on a touch screen device.

Systems and methods of moisture detection and false touch rejection on touch screen devices

A dynamically scaled file encoding method and apparatus are disclosed. A file encoding system using JPEG encoding can be configured to produce relatively constant compressed file sizes irrespective of the initial file size and file contents. The system retrieves an initial file or image that is to be compressed and determines a target bit rate corresponding to the compressed file. The target bit rate is used to determine an initial scaling factor. The initial file is encoded using a JPEG encoder having coefficients scaled by the initial scaling factor. The resultant bit rate can be adjusted in a second loop if greater than the desired bit rate. To adjust the bit rate, a recomputed scaling factor is determined from the resultant bit rate. The initial file is then encoded with coefficients scaled by the recomputed scaling factor to achieve a bit rate that is within the target bit rate.

Dynamically scaled file encoding

A method and system for speech recognition combines different types of engines in order to recognize user-defined digits and control words, predefined digits and control words, and nametags. Speaker-independent engines are combined with speaker-dependent engines. A Hidden Markov Model (HMM) engine is combined with Dynamic Time Warping (DTW) engines.

System and method for hybrid voice recognition

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Vista, CA, United States of America

William Yee-Ming Huang