Motorola

About: Motorola is a company organization based out in Schaumburg, Illinois, United States. It is known for research contribution in the topics: Signal & Communications system. The organization has 27298 authors who have published 38274 publications receiving 968710 citations. The organization is also known as: Motorola, Inc. & Galvin Manufacturing Corporation.

Multiple smart card phone and method

Abstract: A telephone, such as a radiotelephone, is provided having the capability to concurrently operate with two subscriber identification module (SIM) cards. The telephone advantageously permits a single phone to have two telephone numbers associated therewith.

Method and apparatus for mitigating array antenna performance degradation caused by element failure

Abstract: An array antenna (10) having a plurality of antenna elements (12) keeps only a subset of elements active during normal antenna operation. When a failure of one of the active elements in the array (10) is detected, one of the previously inactive elements (46) is activated to operate as a replacement for the failed element (50). The number of elements that are active during normal operation is selected to achieve a level of antenna performance required by an underlying antenna application. Thus, a desired level of antenna performance is maintained during the life of the array antenna (10) without the consumption of excess power by spare elements in the antenna. Redistributions of inactive element locations are periodically performed during the life of the array antenna (10) to enhance antenna performance in light of failed element locations.

Split-gate memory device and method for accessing the same

Abstract: An EEPROM device includes a split-gate FET (10) having a source (36), a drain (22), a select gate (16) adjacent the drain (22), and a control gate (32) adjacent the source (36). When programming the split-gate FET (10), electrons are accelerated in a portion of a channel region (38) between the select gate (16) and the control gate (32), and then injected into a nitride layer (24) of an ONO stack (25) underlying the control gate (32). The split-gate FET (10) is erased by injecting holes from the channel region (38) into the charge nitride layer (24). When reading data from the split-gate FET (10), a reading voltage is applied to the drain (22) adjacent the select gate (16). Data is then read from the split-gate FET (10) by sensing a current flowing in a bit line coupled to the drain (22).

Method and apparatus for multi-antenna transmission

Abstract: In a multiple-input, multiple-output (MIMO) communication system, a method and apparatus for multi-antenna transmission In accordance with the preferred embodiment of the present invention a reduced number of transmit weight matrices are fed back to the transmitter Each transmit weight matrix is then applied to a plurality of subcarriers Because each transmit weight matrix is applied to more than one subcarrier, the amount of weight matrixs being fed back to the transmitter is greatly reduced

Context aware wireless communication device and method

Abstract: A wireless communication device (300) having a settable service state includes a sensor fusion module (306) to provide context data to the wireless communication device (300). The wireless communication device also receives a context parameter. In a method (800) according to a preferred embodiment of the invention, the wireless communication device (300) is operable to set a service state based upon the context data and the context parameter (806).