Motorola Corporation

Other

Freescale Semiconductor,inc.

Motorola Mobility LLC

James David Hughes

John Richard Oakley

Gary L Pace

Edgar Herbert Callaway, Jr

Mahibur Rahman

Clinton C Powell, Ii

Lynn R Freytag

Louis Jay Vannatta

David Ryan Haub

Christopher T Thomas

Charles LeRoy Sobchak

Chun-Ye Susan Chang

Frederick Loring Kampe

Gwilym Francis Luff

Dalier J Ramirez

Ronald R Rockwell

Bryan K Bailey

Gerald Hubbell

Henry Hanek

James A Kimball

Clinton C Ii Powell

A waste collection system to identify and classify waste materials into a plurality of pre-established categories and then to sort into and collect the waste materials by the plurality of the pre-established categories for subsequent disposal comprising a cabinet to house a plurality of collection bins or containers corresponding to the plurality of pre-established categories of waste materials to receive and collect the waste materials by the corresponding pre-established category, a waste sorting assembly to selectively direct the waste materials into the collection bin or container corresponding to the particular category of waste material, a latch mechanism to selectively engage the waste sorting assembly to control access into the cabinet and a system control to identify and classify waste materials into one of the plurality of pre-established categories and to direct the categorized waste material into the appropriate or corresponding collection bin or container for subsequent disposal.

Waste collection system

The present invention provides a system and method by which a thought can be (a) entered, (b) interpreted through combination of an adaptive thought-associative dictionary and user knowledge, (c) processed with an analytical toolset, (d) presented back to the user, (e) stored, and (f) updated. Through feedback the present invention attempts to track the user with increasing accuracy, in the context of a non-stationary environment. The present invention fully associates these elements through use of a database such that post processing can be readily applied to any element, or can be applied as the ability to do such post-processing is developed or improves. Furthermore, the present invention defines a mathematical construct and relationship to the thought environment such that many forms of processing can be realized.

System and method for intelligently determining user preferences and responding thereto

A method () of extending battery life in a communication device having a plurality of receivers includes receiving information with a primary receiver that is configured to operate on a first network () and controlling a secondary receiver that is configured to operate on a second network that is independent from the first network in accordance with the information obtained with the primary receiver. A corresponding communication device () includes: a primary receiver () configured to operate on a first network (); a secondary receiver () configured and arranged to operate as a short range receiver with an access point () that is independent of the first network; and a controller () that is configured to control the secondary receiver in accordance with information obtained from the primary receiver.

Extending battery life in communication devices having a plurality of receivers

Dynamic gain and phase compensation is provided in a radio frequency (RF) receiver () including at least one switched Low Noise Amplifier (LNA) () coupled to an RF gain control unit () providing a gain control signal to the at least one switched LNA () for control thereof. The RF receiver also includes an analog-to-digital (A/D) converter () for digitizing the RF signal and outputting an N-bit digital signal to the RF gain control unit (). The method for gain compensation includes dynamically adjusting the N-bit digital signal to compensate for the at least one switched LNA () in response to the gain control signal. The method for phase compensation includes dynamically normalizing the N-bit digital signal into an M-bit signal range to derive an M-bit digital signal, where M&#x2266;N and dynamically phase adjusting the M-bit digital signal to compensate for the at least one switched LNA () in response to the gain control signal.

Method and apparatus for dynamic gain and phase compensations

A method for reducing current drain in a communication device includes a first step of detecting interference including intermodulation and crossmodulation products. A next step includes determining a frequency offset of the interference with reference to the operating receiver band. A next step includes measuring a power level of the interference. A next step includes calculating a receiver linearity required to achieve a desired signal-to-interference ratio. A next step includes adjusting the receiver linearity in order to achieve the desired signal-to-interference ratio. Optionally, the receiver dynamic range can be adjusted to suit the reduced signal swing due to the reduced linearity.

Current reduction by dynamic receiver adjustment in a communication device

Techniques for adjusting the dynamic range of an A/D converter in response to various conditions are disclosed. A value output by the A/D converter is utilized to determine if the A/D converter is operating at or above its current dynamic range capabilities (i.e., the A/D converter is potentially 'saturated' at its current dynamic range setting). If potentially saturated, the dynamic range of the A/D converter may be increased. If not, the dynamic range of the A/D converter may be decreased or may be unchanged. Alternately, an upcoming or enacted change in the gain settings of one or more gain stages that condition the analog signal input to an A/D converter may be used as a condition that results in an adjustment to the dynamic range of the A/D converter.

System and method for adjusting dynamic range of analog-to-digital converter

An automatic gain control system () and methods thereof for a receiver for providing a wide range of continuous gain control has been discussed. The AGC includes an input stage () for providing an indication of a strength of a received signal; an attenuator stage () operable to switch a fixed amount of attenuation for the received signal; a variable attenuator () to provide a variable amount of attenuation for said received signal, and a controller () responsive to said indication for providing a variable control signal () to the variable attenuator; wherein the controller concurrently changes the variable control signal to change in the opposite direction the variable amount of attenuation by approximately the fixed amount of attenuation whenever the attenuator stage is switched, thereby extending the range of continuous gain control beyond the range of the variable attenuator.

Automatic gain control system having a wide range of continuous gain control

An automatic gain control (AGC) system () for a controlled gain receiver () includes a magnitude generator () and a gain corrector (). The magnitude generator () generates a binary voltage squared signal () having a binary value that is directly proportional to a recovered signal power of an intercepted signal (). The gain corrector () determines an adjustment of a gain control value () as a multiple of increments that are approximately 3 decibel (dB), by shifting () a reference threshold by one or more bits and comparing () the shifted reference threshold to the binary voltage squared signal. An initial setting of a state of a step attenuator () during a track mode () is determined during a warm up mode () by comparing the binary voltage squared signal () to two different thresholds (). A filter () accommodates a variety of bandwidths and symbol rates by settings of an accumulator () and scaler () that are included in the filter (). A received signal strength indicator function () of the controlled gain receiver () generates a low resolution or high resolution RSSI signal (), depending on the mode. The value of the low resolution RSSI signal () is directly proportional to the power of the intercepted signal ().

Digitized automatic gain control system and methods for a controlled gain receiver

A power measurement element () measures () the wide-band received signal power of a receiver (), and a wide-band AGC system () transfers () receiver gain control from an on-channel AGC system () to the wide-band AGC system, when the wide-band received signal power exceeds a pre-programmed threshold for longer than a pre-programmed delay time. The wide-band AGC system is arranged and programmed to decrease () a front-end gain of the receiver through a plurality of gain steps of a pre-programmed size () applied at a pre-programmed rate until the received wide-band signal power falls below the pre-programmed threshold.

Method and apparatus in a wireless communication device for mitigating a received power overload

An electronic device ( ) includes squaring circuit ( ) that includes a logarithmic compression function ( ), a squaring function ( ), a doubling function ( ), and a logarithmic decompression function ( ). The logarithmic compression function ( ) accepts a binary input ( ) of width W and value X, and produces an output having a binary power component ( ) and a binary magnitude component ( ). The squaring function ( ) generates an adjusted squared magnitude component ( ) and a selection signal ( ). The doubling function ( ) generates a doubled power component ( ). The logarithmic decompression function ( ) generates an approximate squared output ( ) of width 2W from the doubled power and adjusted squared magnitude components ( ). The approximate squared output ( ) has a value that approximates the square of X to a predetermined amount of precision, N.

Squaring circuit and electronic device using same

An apparatus for reducing intermodulation distortion in a low current drain automatic gain control system includes a multiplier ( ) and an AGC digital signal processor ( ).

Method and apparatus for reducing intermodulation distortion in a low current drain automatic gain control system

An automatic gain control (AGC) system ( ) for a controlled gain receiver ( ) includes a magnitude generator ( ) and a gain corrector ( ). The magnitude generator ( ) generates a binary voltage squared signal ( ) having a binary value that is directly proportional to a recovered signal power of an intercepted signal ( ). The gain corrector ( ) determines an adjustment of a gain control value ( ) as a multiple of increments that are approximately 3 decibel (dB), by shifting ( ) a reference threshold by one or more bits and comparing ( ) the shifted reference threshold to the binary voltage squared signal. An initial setting of a state of a step attenuator ( ) during a track mode ( ) is determined during a warm up mode ( ) by comparing the binary voltage squared signal ( ) to two different thresholds ( ).

An automatic simulcast correction method ( ) for a selective call receiver ( ) includes the steps of measuring a received signal ( ) for a received signal strength indication measurement and then determining if a protocol indicates a simulcast signal ( ). If the received signal strength indication measurement is above a predefined threshold and the protocol indicates the simulcast signal, then the selective call receiver is optimized for simulcast delay spread distortion ( ). If the received signal strength indication measurement is below a predefined threshold or the protocol does not indicate the simulcast signal, then the selective call receiver is optimized for static sensitivity (

Method and apparatus for automatic simulcast correction for a correlation detector

A digital phase quantized frequency modulation (FM) detector (300) is for a communication receiver (100). A digital phase FM quantizer receives (310) I and Q signals (221, 222) derived from a received FM signal (119) and generates a coded position word (381) of width M bits at the beginning of each period of a sample clock (190) that identifies a sector location of a phasor representing the I and Q signals. A two's complement converter (400) converts the coded position word into a two's complement position word of width M bits. A differentiator (420) of width M bits generates a two's complement difference word which represents a change of a phase angle of the phasor in magnitude and direction during each period of the sample clock. A digital post detection filter filters consecutive two's complement difference words and generates therefrom a reconstructed digital demodulated signal (461).

Digitally sampled phase quantized FM detector for a communication

A receiver circuit (10), and method for automatic frequency control of a receiver circuit (10) suitable for receiving a radio frequency (RF) signal, featuring determination of at least one parameter other than a frequency error of a signal which is mixed with the RF signal received by the receiver circuit; and adjusting the frequency of the signal which is mixed with the RF signal based on the frequency error if the at least one parameter satisfies a predetermined criterion.

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Boynton Beach, FL, United States of America

James David Hughes