STMicroelectronics

About: STMicroelectronics is a company organization based out in Geneva, Switzerland. It is known for research contribution in the topics: Signal & Transistor. The organization has 17172 authors who have published 29543 publications receiving 300766 citations. The organization is also known as: SGS-Thomson & STM.

Audio decoder with an adaptive frequency domain downmixer

Abstract: A method and apparatus for decoding a multi-channel audio bitstream in which adaptive frequency domain downmixer is used to downmix, according to long and shorter transform block length information, the decoded frequency coefficients of the multi-channel audio such that the long and shorter transform block information is maintained separately within the mixed down left and right channels. In this way, the long and shorter transform block coefficients of the mixed down left and right channels can be inverse transformed adaptively according to the long and shorter transform block information, and the results of the inverse transform of the long and short block of each of the left and right channel added together to form the total mixed down output of the left and right channel.

A Reconfigurable Baseband Platform Based on an Asynchronous Network-on-Chip

Abstract: In order to face the inherent complexity of new radio access technologies and to address the development of multi-standard devices, an innovative reconfigurable baseband architecture based on a distributed control and communication framework is proposed. This architecture is tailored to the possibilities and limitations of next-generation CMOS nanotechnologies in terms of leakage and timing closure. A combination of technology features, message passing control model, network-on-chip, asynchronous implementation, clocking and power reduction policies is used. The 79.5 chip was manufactured in a 130 nm CMOS technology and is integrated in a prototyping platform to perform real-time experimentation of advanced MIMO OFDM based telecom techniques. It is composed of 23 functional units, such as computing intensive IPs, channel coding blocks, programmable DMA engines, an ARM946ES core, and an Ethernet interface. These elements are interconnected via an asynchronous layered network-on-chip using an interface that controls the communication and configuration parameters during application scheduling.

Variable stage charge pump

Abstract: A variable charge pump contains several individual simple charge pumps, each with a pumping capacitor and a switching mechanism. Additionally, a switching network is coupled to the individual charge pumps so that the different lines in the charge pump can be connected together in a serial mode or parallel mode (or mixed serial and parallel modes) to match the needs of the output load. The switching network is easily changed to provide the necessary driving capability as the needs of the output load changes.

Low-cost semiconductor user input device

Abstract: A low-cost semiconductor user input device for controlling the position of a pointer on a display includes a small array of composite sensors. Each composite sensor of the array is adapted to detect movement of a fingerprint feature. The user input device moves the pointer based upon the net movement detected by the composite sensors of the array.

Method for pre-caching content to enable true VOD systems from NVOD or stream limited VOD systems

Abstract: Content that is delivered nearly on-demand, in overlapping streams that start in staggered intervals on different channels, is played on-demand for the user using a storage system in conjunction with the receiver. A portion of the content corresponding to the staggering interval of the various streams is pre-cached and employed for playback when the user initiates on-demand playback. Content from the most-recently-started stream at the time of playback initiation is then buffered, and playback switches from the pre-cached content to the buffered content at a preselected alignment point.