Motorola Mobility LLC

Google Inc.

Motorola Corporation

John P Boos

Gregory Redmond Black

Krishna K Bellamkonda

Nischal Patel

Greg R Black

Pierre Muratory

Steve C Emmert

Zhiming Zhuang

Mark J Carlson

Steven Russell Green

Bharat N Vakil

Rafael Colorado

XiaoPing Bai

Gregory R Black

Methods and apparatus for determining a transmit antenna gain and a spatial mode of a wireless device () are disclosed. The apparatus () includes a main receive antenna () associated with a first receive signal strength, a diversity receive antenna () associated with a second receive signal strength, and a transmit antenna (). Each of the antennas (, and) is operatively coupled to a controller (). The controller () determines (i) a difference between the first receive signal strength and the second receive signal strength, (ii) a correction factor based on the difference, and (iii) the transmit antenna gain based on the correction factor. In addition, the difference between the first receive signal strength and the second receive signal strength may be used, along with other sensor data (e.g., accelerometer), to estimate the spatial mode (e.g., orientation and hand grip) of the device (). This spatial mode estimation may be then be used, among other things, to more accurately determine transmit antenna gain.

Methods and apparatus for determining a transmit antenna gain and a spatial mode of a device

In embodiments of variable antenna match linearity, a wireless device includes a first transceiver and a second transceiver, an antenna via which signals are received, and a linearity controller that varies a linearity of an antenna match circuit associated with the antenna. The linearity controller can determine whether a frequency of an intermodulated signal that includes transmissions from the first and second transceivers is within one of a respective receive band of the first transceiver or the second transceiver. The linearity controller can increase a linearity of the antenna match circuit to mitigate an amplitude of the intermodulated signal in the receive band.

Variable antenna match linearity

A dual-sided electrophoretic display () having a first region () and a second region () is provided. Each of the first region () and the second region () includes selectively operable members () that function as pixels for presenting images on the electrophoretic display (). Each of the selectively operable members () is driven by a driver circuit () by way of corresponding thin film transistors and capacitors (), which are opaque. As the selectively operable members () of the second region () are bigger than are the selectively operable members () of the first region (), the aperture ratio of the selectively operable members () of the second region () is greater than in the first region () when viewed from the rear side (). Thus, a contrast ratio of the second region (), when viewed from the rear side () is sufficiently high that text, icons, and characters presented in the second region () are legibly visible on the rear side ().

Dual sided electrophoretic display

A method of maintaining application continuity () and mobile computing device () are described. The method involves a mobile device running an application in synchronous communication with an application server. The application has a threshold communication null period for maintaining application continuity. The method () can include the steps of: operating () the application in synchronous communication with an application server, defining an active mode, wherein the synchronous communication is automatically enabled; providing () a dormant mode wherein the synchronous communication is automatically disabled in the mobile device for a predetermined duration; and interrupting () the dormant mode by momentarily communicating with the application server prior to a threshold communication null period, for maintaining application continuity. Advantageously, prior to a threshold period of communication inactivity, the dormant mode can be interrupted to maintain application connectivity, so the server will not stop the application and data will not be lost.

Mobile computing device and method for maintaining application continuity

A substrate () for a handset device defines at least a portion of an audio port () and may include a keypad contact array () on the substrate () and a display electrode pattern () on the substrate (). A display () is coupled to the substrate and is configured to at least partially surround the audio port portion on the substrate. In addition, in one example, the substrate () for a handset device () may include a first surface and a second surface. A keypad contact array () and a display electrode pattern () may be included on the first surface () of the substrate (). The display () may be operatively coupled to the display electrode pattern ().

User interface substrate for handset device having an audio port

A wireless communication device () and method () adapted to prolong the useful life of an energy storage device is disclosed. In its simplest form, it can include: determining () a limit temperature discharge energy rate of an energy storage device; sensing () a temperature range threshold in proximity to the energy storage device; and adjusting () a discharge energy rate in response to the determined limit temperature discharge energy rate () and sensed temperature range threshold (). The device () and method () can automatically and dynamically manage current drain of an energy storage device when a certain temperature range threshold is reached, to maintain the energy storage device within desired specifications and tolerances. This can prolong the useful life of the energy storage device and help to maintain a maximum recharging capacity.

Device and method to prolong the life of an energy source

A radio frequency identification (RF ID) tag () and a method for communicating data from an RF ID card to an electronic device () are disclosed. The RF ID tag comprises one or more removable materials that conceal the data (). The presence of the one or more removable materials disables the RF ID tag.

System and method for transferring data to an electronic device

A method for reducing current drain in a communication device includes a first step of developing a history of readings of received signal strengths (RSS) of a neighboring broadcast control channel (BCCH). A next step includes monitoring a RSS of the neighboring channel during a wakeup period. A next step includes determining whether the RSS is substantially stable with respect to the history of readings. A next step includes skipping the monitoring of the RSS for at least one of the subsequent wakeup periods if the RSS is substantially stable with respect to the history of readings.

Growing community of inventors

Grayslake, IL, United States of America

John P Boos