Imec Vzw

Other

Interuniversitair Microelektronica Centrum (imec)

Sait Systems

Imec

Imec Co., Ltd.

Bert Gyselinckx

Carl Van Himbeeck

Hugo De Man

Jan Vanhoof

Lieven Philips

Maryse Wouters

Ivo Bolsens

Marc Engels

Rik De Wulf

Veerle Derudder

Liesbet Van Der Perre

Francky Catthoor

Jochen Uwe Giese

Curt Schurgers

Alain Rabaeijs

Steven Mark Thoen

Wolfgang Eberle

Eric Aardoom

Mark Engels

An electronic system for receiving spread spectrum signals, in particular GPS and/or GLONASS signals is described. In particular, the functional specification for the design of an advanced GPS and/or GLONASS receiver (AGGR) is disclosed. The AGGR is preferably fabricated including at least one sub-system implemented as an application specific integrated circuit (ASIC). The present disclosure describes the AGGR functionality and its modes of operation to a detail allowing a future user of the device to understand its features and limitations and to assess its suitability for an envisaged application. A method and an apparatus are described for processing received spread spectrum signals modulated with a unique pseudo-random code including a capability of hierarchically chaining a plurality of channel modules in series, specific forms of delay line units and correlator units which can process CA-code, P-code and Y-code signals.

Method and apparatus for receiving GPS/GLONASS signals

The programmable modem for digital data of the present invention provides a highly programmable, digital modem implemented in an integrated circuit which can be customized to specific applications. The programmable modem uses spread spectrum techniques and is specifically programmable to alter the parameters of the modem to improve performance. The present invention also provides a systematic method and development kit to provide rapid customization of a modem for a particular application or for rapid specification of a high-performance application specific integrated circuit mode.

Programmable modem apparatus for transmitting and receiving digital data, design method and use method for the modem

High speed wireless OFDM transceiver modem

Methods and architectures for turbo decoding are presented. The methods are such that low energy consumption is obtained with reduced memory requirements. Moreover the methods show improved performance with respect to latency.

System and method of turbo decoding

A method and apparatus for receiving and converting spread spectrum signals is disclosed. The method and apparatus allow the receiving of spread spectrum signals and different frequency bands substantially simultaneously on the same chain of hardware components. The received signals are processed on the chain of hardware components and the resulting signal thereafter can further be used within an electronic circuit. The method includes the steps of converting analog signals into a lower frequency digital signal. The conversion step includes capturing a plurality of incoming signals within a predetermined spectral range, filtering out of the incoming signals a first plurality of analog spread spectrum signals in a plurality of analog spread spectrum signals in a plurality of predetermined bands with predetermined widths, and sampling the analog signals with a sampling frequency F.sub.s wherein F.sub.s is chosen such that the resulting time-discreet signal comprises a second plurality of analog spread spectrum signals, being the first plurality of analog spread spectrum signals which have been aliased without substantial self-aliasing.

Method and apparatus for receiving and converting spread spectrum signals

Programmable modem apparatus for transmitting and receiving digital

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Heverlee, Belgium

Bert Gyselinckx