Plantronics, Inc.

Plantroncis, Inc.

Stephen V Cahill

Steve C Evans

Mark Clark

Douglas Kenneth Rosener

Barry J Lee

Methods and apparatuses for optimized channel selection are disclosed. In one example, a channel quality is measured of each channel of an available number of channels on which a mobile communication device can transmit and receive. A subset of the available number of channels is allocated to a long range channel class responsive to the channel quality. An RSSI of the mobile communication device is monitored and correlated to a mobile communication device proximity to a base station. A channel is selected from the long range channel class if the mobile communication device proximity is greater than a predetermined proximity.

Communications system density and range improvement by signal-strength-directed channel class selection with weighting for minimum capacity consumption

Methods and apparatuses for multiple RF band operation in mobile devices are disclosed. In one example, a method for dual radio frequency band operation includes operating a mobile communication device in a first radio frequency band, monitoring a RSSI associated with the mobile communication device, and switching operation of the mobile communication device to operation in a second radio frequency band responsive to the RSSI crossing a threshold RSSI value.

Multiple RF band operation in mobile devices

A system for bringing a portable telecommunications device into compliance with local telecommunications requirements is described. Systems on the portable telecommunication device scan the local environment to determine if the operating characteristics of the portable telecommunication device are like those in the vicinity of the device or are different from those in the device's vicinity. If the communications characteristics of the portable telecommunication device are different from those in its immediate vicinity, then the portable telecommunications device undertakes one or more remedial actions to bring its operations into compliance with local telecommunications requirements.

Telecommunications device localization and alarm

Methods and apparatuses for radio proximity detection are disclosed. In one example, a method for determining a proximity of a mobile radio includes determining an initial range of a mobile radio in relation to a base radio, and processing the initial range determination to determine whether to make a refined range determination utilizing signal measurements from both a base radio first antenna and a base radio second antenna.

Proximity detection using diversity path loss sampling

In one example, a method and system for selecting a channel for use with a mobile communication device is described. A shared frequency band shared between a first wireless communications protocol and a second wireless communications protocol is scanned to identify an active second wireless communications protocol channel. One or more first wireless communications protocol channels corresponding to the active second wireless communications protocol channel are removed from a list of selectable channels. A first wireless communications protocol channel is selected from the list of selectable channels.

Communications system with efficient multiprotocol-aware channel selection and interference avoidance

A method and apparatus for determining proximity of a headset relative to its base. A plurality of frequency swept RSSI signals are measured and processed to determine a near status or a far status of the headset relative to its base. In one example, a peak RSSI signal is identified in the plurality of frequency swept RSSI signals. The peak RSSI signal is compared to a near/far threshold RSSI value to generate a near status or far status indication.

Near-far sensing using frequency swept RSSI

In one example, a method and system for selecting a channel for use with a mobile communication device is described. A first wireless communications protocol network parameter associated with a first wireless communications protocol is monitored. A second wireless communications protocol operating channel is selected utilizing the monitored parameter data associated with the first wireless communications network.

Multiprotocol interference avoidance in monoprotocol radio communications system

A system and method for small built-in antennas that can be incorporated into short range communication devices such as cordless headsets are disclosed. The antenna is a built-in bifurcated inverted F antenna. The antenna generally includes two signal radiating and receiving arms of substantially equal electrical length extending generally parallel to each other along a longitudinal length of the antenna, the arms defining an opening therebetween extending along the longitudinal length of the antenna, a signal component in communication with the two arms for transmitting and receiving signals between the two arms and a signal contact of the wireless communication device, and a grounding component in contact with a grounding plane for grounding the antenna. The antenna may include an extension sloped relative to the grounding plane and extending between the grounding component and the arms to minimize the profile of the antenna. The wireless device may further include a printed circuit board onto which the antenna is secured. The device may also include a control in communication with the printed circuit board and extends through the opening between the two arms such that the control is symmetrically arranged relative to the two arms, approximately on a center line extending the longitudinal length of the device. The antenna is optionally tuned for a 1900 MHz or a 2400 MHz frequency band.

Growing community of inventors

Felton, CA, United States of America

Stephen V Cahill