A high-speed transmitter and receiver are provided. In one embodiment, a transmitter comprises a baseband processor structured to receive data and to convert the data into a multiplicity of high and low signal values, with each high and low signal value having a first timing interval. A local oscillator generates a clock signal at a second timing interval and a digital circuit combines the high and low signal values with the clock signal to produce a transmission signal directly at a transmission frequency. A receiver is configured to receive the signal. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.

High data rate transmitter and receiver

Apparatus and methods of ultra-wideband communication are provided. In one embodiment, an ultra-wideband receiver comprises an envelope detector that detects the amplitude of a received ultra-wideband pulse and generates a waveform representative of the envelope of the received ultra-wideband pulse. A sign detector then determines a sign associated with a data bit encoded on the received ultra-wideband pulse. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.

Ultra-wideband communication apparatus and methods

An identification tag is provided in which radio frequency (RF) circuitry and ultrawide bandwidth (UWB) circuitry are both provided on the same tag, along with some UWB-RF interface circuitry. The RF circuitry is used to detect when the identification tag must be accessed, and is used to connect the UWB circuitry with a power supply. The UWB circuitry then performs the necessary communication functions with a distant device and the power supply is again disconnected. In this way the power supply is only accessed when the UWB circuitry is needed and it's usable lifetime can be maximized.

Method and system for performing distance measuring and direction finding using ultrawide bandwidth transmissions

A system and method to generate an ultra-wideband pulse is provided One method of the present invention includes generating an ultra-wideband pulse that includes a first section representing a first data symbol, and a second section representing a second data symbol A second method of the present invention includes generating an ultra-wideband that comprises a plurality of time bins, with each time bin comprising a data symbol that represents a multiplicity of binary digits Another method of the present invention includes generating an ultra-wideband pulse that comprises a plurality of time bins, with each time bin representing a first data symbol The same ultra-wideband pulse also includes an amplitude that represents a second data symbol

Ultra-wideband pulse generation system and method

The present invention relates to the conversion of signals from RF to baseband using transition functions, or edge functions. These functions typically transition from positive to negative, or from negative to positive, synchronously with the transition of the received pulse signal, effecting detection essentially by synchronously rectifying a signal cycle of the received pulse, producing a net signal at baseband that can be further processed to detect modulation according to the modulation format. It is further disclosed how to configure these systems for optimal reception with a filter optimized for a given detect signal function. Generalizations of the matched filter embodiment lead to further embodiments employing alternative detection functions. Also disclosed is a two-stage version which applies a decode signal to the rectified signal. This step can be performed by a single correlator or by a plurality of correlators in parallel. Coding methods are disclosed to employ two-stage systems for enhanced channelization, and interference rejection.

Method and apparatus for converting RF signals to baseband

Methods and apparatus for detecting ultra wide-band signals using circuitry having nonlinear dynamics characteristics are disclosed. The receiver circuit can be implemented using a simple tunnel diode or using an op-amp to provide dynamic characteristics. The detector can be used in a variety of modulation schemes, including but not limited to an ON-OFF keying scheme, an M-ary pulse position modulation scheme, and a pulse width modulation scheme. The approach requires only a single frame to detect the signal.

Jurianto Joe

Papers

Method and apparatus for signal detection in ultra wide-band communications