Thursday, March 23rd, 2017

August 16, 2016, Intel Developer Forum, San Francisco—A group of experts talked about the changes in capabilities and characteristics that computer systems will need as consumer devices increasingly move to voice-activated interfaces. Users expect greater personal mobility when not tethered to their devices even if the user interface devices are wireless. Most audio interfaces to [...]

November 11. 2015, ARM Techcon, Santa Clara,CA—Cole Li from DSP Concepts presented information on advanced microphone processing on ARM processors. The growing number of devices that include microphones requires better understanding of mike characteristics and how to process their signals. Mikes are not only in phones and tablets, but are moving into automotive and IoT [...]

June 2, 2015, Society for Information Display Symposium, San Jose, CA—Robert Li Kam Wa from Rice University talked about rethinking the imaging pipeline for energy-efficient, privacy-preserving continuous mobile vision. The always-on world has been adding more and higher resolution imaging capabilities, so the industry has to consider how to protect the information. The primary changes [...]

February 25, 2015, ISSCC, San Francisco—Ganesh Balachandran from Bosch presented the design of a 3-axis gyroscope for electronic stability control (ESC) with continuous self test. Active and passive control systems are the driver for more functionality and capability within a car and these functions create a need for more sensors. In a car, a gyroscope [...]

February 24, 2015, ISSCC, San Francisco—Hugo Westerveld from the University of Twente, The Netherlands presented a 115 dB dynamic range audio DAC with -61 dBFS out-of band noise. The design addresses the issue of out-of band noise on overall DAC performance. Many audio DACs use a 1-bit sigma-delta DAC with noise shaping that achieve low [...]

September 16, 2014, Custom Integrated Circuits Conference, San Jose, CA—Min Gyu Kim from Broadcom described their work in designing a high-dynamic range with low noise and distortion headphone driver. Among the other design constraints, they also had to make the part run on very low power to address the needs of portable device users for [...]

February 10, 2014, ISSCC, San Francisco—This session focused on RF building blocks that can minimize or eliminate external component in radio systems in wireless systems. The first half of the session looked at the transmission side, mainly for cell phones, and the remainder offered receivers. One interesting paper from David Murphy at Broadcom is a [...]

February 20, 2013, ISSCC, San Francisco—This session looked at sensors and displays in various fields. Three of the papers from KAIST in Korea addressed sensors as a part of a touch panel. The other papers covered gravity, sound, current, temperature, and light. Delft University in The Netherlands and Infineon produced a micropower battery current sensor [...]

October 27, 2012, AES Convention, San Francisco—Amin Taghipour from the Fraunhofer Institute’s International Audiolabs presented new techniques for psycho-acoustic models that allow better quantization and threshold detection. This perceptual audio coding provides more listener independence. The threshold for quiet is changed by simultaneous making effects. You need to have dynamic gain and frequency conditions to [...]

 January, 2012 We talked with Sherif Hanna about the release of extensions and upgrades to their touch controller product line. The changes address the areas of noise, resolution, for the larger screen product and a reduced parts count. The division grew from $140M in ’10 to over $300M last year. Now, they are working to [...]