Abstract: An elastomeric connector assembly for electrically coupling electronic components comprises a first contact member extending from a surface of a first electronic component in a generally vertical plane for providing electrical connection to the first electronic component and a second contact member extending from a surface of a second electronic component in a generally vertical plane for providing electrical connection to the second electronic component. An elastomeric connector is disposed between the first contact member and the second contact member in a generally horizontal plane. The elastomeric connector couples the first contact member and the second contact member for providing an electrical connection between the first and second electronic components.

Abstract: A digital arrangement for selecting a channel coefficient and DC estimate comprises a demultiplexer receiving a digital input signal splitting the digital input signal into a first and second signal, a first joint detection unit receiving the first signal generating a first channel coefficient and DC estimate, a second joint detection unit receiving the second signal generating a second channel coefficient and DC estimate, a first and second error determination unit receiving the first and second channel coefficients and DC estimates, respectively for generating a first and second error signal, a decision unit receiving the first and second error signal generating a control signal, and a selection unit controlled by the control signal for selecting the first or second channel coefficient and DC estimate.

Abstract: A digital signal detector arrangement comprises at least two selectable baseband filters for receiving a digital signal, a signal estimator receiving the output signal of the selected baseband filter, a modulator unit receiving the estimated signal from the signal estimator, a subtractor for subtracting the modulated signal from the received digital signal, and a determination unit receiving the signal from the subtractor for selecting the baseband filter.

Abstract: The present invention comprises a system and method for improving voice quality of cordless communications. The system comprises at least one mobile unit having circuitry for maintaining an individual communication link with a base station. The system also has logic residing in the base station for selecting a frequency to maintain the communication link, monitoring parameters relating to the quality of the frequency, and performing data correction on the frequency in response to the monitored quality of the frequency.

Abstract: A power control system and method for a wireless telephone employs an open loop technique for relatively low power levels and a closed loop technique at higher power levels. In the open loop technique, a wireless telephone (104, 106, 108) stores a phasing table of automatic power control (APC) values for the power levels (which are used to control upconverter gain levels measured at different channels. In operation, a power controller (322) reads the power level and reads the APC value in the table. Another table stores the APC value for one power level as the channel and temperature are varied. This value is interpolated, as needed, during operation. The APC value for the open loop approach is determined by reading the input channel; finding the closest higher and closest lower channels in the temperature-channel table; interpolating between APC values for the temperature column of the closest lower temperature, to get the actual value.

Abstract: A mono-band planar inverted F antenna (PIFA) structure comprises a planar radiating element having a first area, and a ground plane having a second area that is substantially parallel to the radiating element first area. An electrically conductive first line is coupled to the radiating element at a first contact located at an edge on a side of the radiating element. The first line is also coupled to the ground plane. An electrically conductive second line is coupled to the radiating element at second and third contacts located along the same side as the first line, but at different locations on the edge than the first contact. Useable bandwidth of the PIFA is increased by using multiple contact locations to couple the conductive second line to the radiating element. The first and second lines are adapted to couple to a desired impedance, e.g., 50 ohms, at frequencies of operation of the PIFA.

Abstract: A method and system allows two or more different coordinates for a geographic location to be expressed as a single string of characters. The single string of characters may include numerical digits or numbers, alphabetic characters or letters, punctuation or other typographical marks, other symbols, or a combination of two or more of these. A geographic location may refer to a physical place, the location of an object, or some other location.

Abstract: A system and method allow a user of a parallel cordless handset to join in an ongoing communication. A conference circuit is placed on the ongoing conversation and the parallel handset is bridged into the conversation. The system and method can also bridge in data transmissions. An alert can provide notification to the handset already in the conversation, the handset attempting to join the conversation, or both. The system can be set up to allow access to the conversation upon election of either handset user or, alternatively, upon election of both handset users. Alternatively, the access can be granted without requiring election (automatically) or can be mandatory. More than one handset can be joined into the ongoing communication.

Abstract: A method for testing a plurality of cordless telephones (12,14) includes assigning a temporary ID to each of the plurality of cordless telephones (12,14). Each temporary ID identifies a first activation frequency for each corresponding cordless telephone (12,14). The method also includes activating each cordless telephone (12,14) at the first activation frequency identified by the corresponding temporary ID and simultaneously testing each cordless telephone (12,14) at the corresponding first activation frequency. The method further includes assigning a permanent ID to each cordless telephone (12,14) after completion of the testing. The permanent ID identifies a second activation frequency for a subsequent activation of the cordless telephones (12,14).

Abstract: A method for testing an assembled telephone (10) includes activating the telephone (10) and automatically transmitting a poll command from a processor (60) of the telephone on a bus (66) of the telephone (10). The method also includes receiving a test command from a testing device connected to the bus (66) in response to the poll command. The test command is operable to automatically initiate a test of the telephone (10). The method further includes automatically initiating a standard operational mode of the telephone (10) if the test command is not received by the processor (60) in response to the poll command.

Abstract: A radio frequency shield enclosure (100) is mounted on a printed circuit board and is adapted to allow optical checking of the components enclosed by the shield enclosure (100). A cover (402) is removably attached to a frame (102) on the printed circuit board for access to the printed circuit board components therein. Material and spring forces are selected to minimize the forces on the printed circuit board when attaching or removing the shield enclosure cover (402). Any openings or gaps in the radio frequency shield enclosure cover (402) are small enough to prevent radio frequency energy at the highest anticipated frequency from being radiated outside of the radio frequency shield enclosure (100).

Abstract: A system and method for sensing the proximity of an electronic device, in particular, a radio frequency mobile communication device such as a mobile telephone, wireless modem equipped portable computer, or the like to a body employs an antenna capable of altering its impedance for changing the amount of radio frequency electromagnetic energy reflected by the antenna when the antenna is in proximity to the body. The radio frequency electromagnetic energy reflected by the antenna is measured and used for determining proximity of the antenna to the body.

Abstract: A system and method for reducing the Specific Absorption Rate (SAR) of a mobile communication device employs a sensor assembly for sensing when the mobile communication device is in proximity to a body such as a human body, animal body, or the like. The average power of the radio frequency electromagnetic energy radiated by the mobile communication device may then be reduced only when necessary so that the S AR value for the device is maintained below a predetermined acceptable level.

Abstract: A device for providing radio frequency shielding is disclosed. The device includes a frame and cover removably attached to the frame. The frame is configured to extend generally around the periphery of an electronic component. The frame has an upper wall, sidewalls depending therefrom, and a plurality of stiffening flanges extending from the upper wall towards an interior portion of the frame. The cover has an upper surface and a plurality of members extending therefrom for engagement with the sidewalls of the frame. The cover and the frame form an enclosure for radio frequency shielding the electronic component.

Abstract: A call forwarding system is provided wherein a subscriber may forward calls from a first telephone to a desired destination, for example, a mobile telephone. A “Call Unforward Once” function is provided wherein a subscriber or other user may bypass the call forwarding for an individual call, but maintain the call forwarding function for other calls. In operation, the subscriber may place a call from the forwarded-to number to the forwarded-from number and dial a predetermined function code. The function code allows the user to connect to the forwarded-from number.

Abstract: A method and system allows two or more different coordinates for a geographic location to be expressed as a single string of characters. The single string of characters may include numerical digits or numbers, alphabetic characters or letters, punctuation or other typographical marks, other symbols, or a combination of two or more of these. A geographic location may refer to a physical place, the location of an object, or some other location.

Abstract: Systems and methods of pointing in hand-held devices are described. In accordance with this scheme, a user may control the position where a pointer is displayed on a display screen simply by changing the orientation of the hand-held device relative to a currently preferred device orientation, which is tracked automatically. In addition, unintentional device orientation changes, such as periodic device orientation changes that might be caused by carrying the hand-held device while walking or driving, are filtered out dynamically. In this way, the pointer may be positioned accurately and reliably at any one of a plurality of pointer screen locations based upon changes in device orientation under a wide variety of different usage conditions.