Abstract: A method and apparatus for determining proximity of a mobile radio relative to its base radio. Antenna diversity is utilized to provide improved proximity detection, such as NEAR state or FAR state, of the mobile radio relative to its base radio.

Abstract: An apparatus and method are provided for determining the donned or doffed state of a headset. In one example, a headset includes a processor, an acoustic transducer, and a detector operably coupled to the processor, the detector providing an output charge pattern corresponding to a state selected from the group consisting of the headset being donned and doffed. Advantageously, the present disclosure provides for reliably determining a donned or doffed state of a headset for efficiently routing calls, text messages, and/or otherwise being used for notifications and requests in a system.

Abstract: A headset includes a voice print match application or speech recognition application. The voice print match application receives a user speech corresponding to a submitted voice print phrase key upon determining a donned condition, where the user speech is compared to the predetermined voice print phrase key to validate an identity of the headset user. The speech recognition application receives a user speech corresponding to a password or PIN and recognizes the password or PIN. The recognized password or PIN is compared to a valid password or PIN to validate the identity of the headset user.

Abstract: Systems and methods for a line amplifier circuit are disclosed. The line amplifier circuit generally includes a first microphone transmit line, a second microphone transmit line, and a light emitting diode with a controllable variable light output. A photo-resistor cell is coupled across the first microphone transmit line and the second microphone transmit line. The photo-resistor cell is operable to attenuate gain on the first microphone transmit line and the second transmit line responsive to the controllable variable light output from the light-emitting diode.

Abstract: 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.

Abstract: The present invention provides for a microphone. The microphone includes housing, a port disposed in the housing leading to an interior chamber, and a diaphragm with a first side and a second side. The first side of the diaphragm faces the port. The microphone includes a shunt channel from the port to the second side of the diaphragm. The shunt channel receives a wind noise signal to reduce the effects of the wind noise signal on the diaphragm.

Abstract: Systems and methods for a headset adapter circuit are disclosed. The headset adapter circuit generally includes a maximal length sequence generator circuit coupled to the adapter transmit signal line for injecting a maximal length sequence signal. A maximal length sequence cross-correlator circuit is coupled to the adapter receive signal line for capturing a receive signal sample and convolving the receive signal sample with the maximal length sequence signal to generate a host phone sidetone path impulse response.

Abstract: Methods and systems for network addressable loudspeakers and audio play are presented. One or more network addressable loudspeakers are registered at a server. An end user selects a network addressable loudspeaker to output audio, and an audio file is streamed from an audio source to the selected network addressable loudspeaker.

Abstract: 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.

Abstract: Systems and methods for automatic detection and signaling of an on-line status of a headset or other audio transmit/receive system used with telephony and/or other multimedia application software running on personal computers or other processor-based hosts are disclosed. The system generally includes a headset to communicate with the host executing the application software such as a softphone utilizing the headset via a port of the host, an on-line status detector in communication with the host via the port to detect the on-line status based on detecting a request for transmit data at the port and based on a signaling protocol associated with the port and independent of the application software, and an on-line indicator selectively activated by the on-line status detector. The request for transmit data may be detected by the opening or presence of a transmit channel opened by the host on the port.

Abstract: A miniaturized acoustic boom structure includes a microphone boom housing having a wind screen and a microphone pod configured to hold a microphone. The microphone pod has an outer surface secured to an inner surface of the microphone boom housing, an interior having one or more surfaces configured to form an acoustic seal around at least a portion of the periphery of the microphone, and first and second pod port openings. The first and second pod port openings provide sound wave access to opposing sides of a diaphragm of the microphone, and are shaped and spaced away from the first and second microphone ports of the microphone so that an acoustic path length between the first and second pod port openings is greater than an acoustic path length between the first and second microphone ports.

Abstract: Systems and methods for Bluetooth Control for VoIP telephony using the Bluetooth Headset Profile are presented. A Bluetooth Headset Profile volume control command message is received and translated to a corresponding USB HID profile menu up or menu down command message. A Bluetooth Headset Profile hookswitch command message is received and translated to a USB HID profile menu item select command message.

Abstract: Systems and methods for establishing conference calls using a headset are presented. The headset includes a wireless communications transceiver operable to form a first local wireless link with a first local telephone in communication with a first far end telephone user and a second local wireless link with a second local telephone in communication with a second far end telephone user. The headset further includes a processor operable to establish a conference call between the headset user, the first far end telephone user, and the second far end telephone user.

Abstract: Systems and methods for reporting of presence information associated with use of a mobile telephone are presented. In one example, a headset that is paired with a cellular mobile phone relays presence information to a presence application running on a computer.