Maxim Integrated Products, Inc.

Tagarray, Inc.

Other

Cohen, Elik

Pahlavan, Kourosh

Kourosh Pahlavan

Farokh Hassanzadeh Eskafi

Mohammad Amin Arbabian

Elik E Cohen

Harish S Muthali

Charles John Razell

Ari Vauhkonen

Systems, devices and methods are disclosed for an ultra-wide-band (UWB) transmitter tag capable of operating in different power mode depending on voltage level and/or host interruption signal. The transmitter tag comprises a power management circuit, a one-time-programmable memory (OTP), a read/write memory, a state machine for controlling/monitoring the operation of the tag. The tag goes into the high power mode when the power supply ramps up to a preset voltage level. During the high power mode, the tag consumes the higher level of electrical current as indicated by the battery current signal. Upon completion of high power consumption activity, such as OTP memory download, the tag exits the high power mode and enters the low power mode. The power supply current goes to the low level to minimize the power consumption by the tag.

Low power ultra-wide-band transmitter

Systems, devices and methods are disclosed using a transmitter architecture to keep the transmitter in a deep sleep mode before activation/enabling. The transmitter tag comprises a power-good-detector, a first regulator and a second regulator. The power-good-detector includes a power-good-latch, a ring oscillator and a ripple counter. Upon disconnecting a GPIO pin from the ground, the power-good-latch sends a Bias_EN signal to the regulator. Upon receipt of the Bias_EN signal, the first regulator transmits a wakeup signal to the ring oscillator, which then starts sending the clock signals to the ripple counter. When the counted clock signals reach a threshold value, the ripple counter sends the power-good-digital signal to the flip flops. When the tag is in the reset mode, the power-good-digital signal is also low. When the power-good-digital signal goes from low to high, the tag is out of the reset mode.

Power-good detector for ultra-wide band transmitter with emphasis on low power consumption

A wireless mobile device for local indoor positioning and navigation by detection of arbitrary signals comprising a GPS signal module capable of detecting a GPS constellation, an arbitrary signal module capable of interacting with a local device constellation, an application processor coupled to the GPS signal module and the arbitrary signal module, and memory coupled to the application processor including code segments executable on the application processor for a) identifying a GPS constellation with the GPS receiving module, b) identifying a local device constellation with the arbitrary signal module, and c) implementing a position and navigation process using at least one of a detected GPS constellation and a detected local device constellation.

Local indoor positioning and navigation by detection of arbitrary signals

Embodiments of the present invention include methods and systems for detecting a peak of an ultra-wide-band (UWB) signal in a data stream. The system () for detecting a peak of an ultra-wide-band (UWB) signal () in a data stream () includes: one or more processors (); and a non-transitory computer-readable medium or media () comprising one or more sequences of instructions which, when executed by the one or more processors (), causes steps to be performed comprising: selecting a portion () of a data stream () in a current clock cycle, the portion () of the data stream includes a preset number of data samples; finding a set of data samples included in the preset number of data samples, the set of data samples includes one or more consecutive data samples and has a uniform magnitude; and promoting the set of data samples as a peak if the uniform magnitude is higher than a magnitude of a first data sample that immediately precedes the set of data samples and a magnitude of a second data sample that immediately follows the set of data samples.

Peak detection in data stream

The invention relates to a ranging system for measuring the distance between an interrogator and a transponder. The transponder includes: a signal receiver for receiving a challenge signal from an interrogator; a signal processor for processing the challenge signal and generating a response signal in response to the challenge signal; a buffer for storing the response signal generated by the signal processor; and a signal transmitter for sending the response signal stored in the buffer when the signal processor receives a ranging signal from the interrogator, wherein a time interval between the challenge signal and the ranging signal is known to both transponder and the interrogator.

Time of arrival delay cancellations

This invention pertains to the connection between a radio frequency circuit and its antenna. Miniaturization of radio frequency integrated circuits has made attaching these circuits to their antennas increasingly difficult and costly. This invention uses magnetic coupling, as performed in transformers, between circuits and antennas as a practical solution to reduce cost and effort in attaching the two sides as well as to protect the circuit against electrostatic discharge. Furthermore a simple pre-assembly testing methodology is accounted for as an additional benefit of the method.

Inductive antenna coupling

A wireless switch or sensor is provided that includes a radio frequency (RF) transponder including a narrowband receiver operable to generate power from a received narrowband RF signal and an ultra wideband (UWB) transmitter operable to transmit UWB pulses using the generated power.

Passive wireless connection

An ultra low power, low complexity, low collision, deterministic modulation method that also works as a massive medium access mechanism for communication systems is based on positioning data in a communication resource space, such as time and frequency, such that the position of a symbol in that space determines its value and its access to the medium. The number base of the symbol is determined by the size of the subset of the resource space it is positioning itself in and, thereby, a few sparsely located symbols can convey a large value, while the remainder of the space can be simultaneously and massively used by other sparsely resource using members of the network.

Growing community of inventors

Cupertino, CA, United States of America

Kourosh Pahlavan