Abstract: A method is provided for interfacing telecommunication devices. A base unit is connected to a landline for wireless communication. The base unit has a power supply operating at a power supply frequency. A mobile unit is provided for wireless communication with the base unit. The base unit is interfaced to the mobile unit using an interface protocol that has a plurality of frames. Each frame is for transmitting signals from the mobile unit to the base unit and from the base unit to the mobile unit. The frames have a specified frame length. An interference frequency is detected at either the base unit or the mobile unit. The interference frequency is compared with the power supply frequency. The frames are synchronized with the power supply and the specified frame length is adjusted based on the power supply frequency when the interference frequency and the power supply frequency are substantially the same.

Abstract: A side-mounted cursor pointing device (108) for a wireless terminal (100) including a sliding cover (110). The sliding cover (110) slides over the cursor pointing device (108) in an off position. When the cover (110) is slid off the cursor pointing device (108), a biasing member (212) upon which the cursor pointing device (108) rests allows the cursor pointing device (108) to pop into position and allows the user to press down on the cursor pointing device (108) in order to make a selection. The sliding cover may be an on-off switch for the wireless terminal.

Abstract: A method is provided for wireless communication. The method includes communicating from a first unit to a second unit a plurality of transition signals. Each of the transition signals has a sequential value. The method further includes transitioning the first unit and the second unit from a first state to a second state simultaneously based on the sequential values of the transition signals.

Abstract: A method and system are disclosed for avoiding bad frequency subsets in a frequency hopping cordless telephone system. A base station communicates with the handsets using frequencies selected from active frequency subsets. Bad frequency subsets are avoided by monitoring the air interface between the base station and handsets for errors in active frequency subsets. Errors in each active frequency subset are counted during a short-term interval using an associated short-term error counter and during a long-term interval using an associated long-term error counter. After each short-term interval, it is evaluated whether any of the short-term error counters has a value that is greater than a defined threshold. After each long-term interval, it is evaluated whether any of the long-term error counters has a value greater than an error count for a blocked frequency subset.

Abstract: A telecommunications device includes an improved transmit power control loop. The transmit power control loop receives an output power measurement from a power amplifier (316) at a transmitter output. The transmit power control loop also averages and samples an input power. The sampled power is provided to a calibration table (405), which produces a corresponding corrected instantaneous output power. The instantaneous output power is then compared with the sampled output power. A difference between the instantaneous output power and the measured output power is the summed with the averaged power to provide a correction figure, used to adjust the set power. A running sum filter (416) may be used to filter the resulting corrected power signal. The resulting average power adjustment is then used to adjust the gain of various power amplifiers (304, 312, 316) in the transmit path.

Abstract: A method and system are provided for selecting a communication channel in a wireless communication system. The method and system include defining a plurality of channel groups. Each channel group corresponds to a plurality of communication channels. The method and system also includes setting a set counter to the channel group having the current communication channel. Further, the set counter is incremented after each channel hop and an index counter is incremented when the set counter resets. Next, a sequence number is determined as a function of the set counter and an identifier is associated with the wireless communication device. The method and system continues with determining an offset as a function of the sequence number and the index counter and determining a next communication channel as a function of the set counter and the offset.

Abstract: A wireless telephone includes first and second baseband processors. The first baseband processor (GSM) functions as system master, and the second processor (TDMA) functions as system slave. The first baseband processor interfaces to system controls, such as power supply, man-machine interface (MMI), and the like.

Abstract: A method and system are provided for synchronizing wireless communication devices. The method and system involve providing a first unit and a second unit for communication over a wireless communication link. Further, an identical identifier is assigned to the first and second units. Also, a data message is constructed having control data. The data message includes a plurality of data bytes and a portion of the control data corresponds to the identifier. The data message is split into a plurality of message portions and the message portions are transmitted from the first unit to the second unit. The message portions are received at the second unit. Control data from the message portions is assembled to form a control message at the second unit. The identifier portion of the control message is compared with the identifier assigned to the second unit. When the identifier portion of the control message matches the identifier assigned to the second unit, the second unit enters an in-synchronization state.

Abstract: A system and method are disclosed for automated testing of electronic devices. An original test is performed on a model product (24) while the model product (24) is coupled to a test recorder (12). During the test, the model product (24) is manipulated to invoke a desired response. As the test is performed, the manipulations and the desired responses are recorded by the test recorder (12) in an executable format (35). Subsequently, a test analyzer (12) is coupled to a to-be-tested product (24), and the executable recording (35) of the test is played such that the to-be-tested product (24) is manipulated as the model product (24) had been manipulated during the original test. The to-be-tested product's (24) responses to the manipulations are compared against the model product's responses (24). Any difference between the to-be-tested product's (24) responses and the model product's (24) responses are identified.

Abstract: A method and system are provided for wireless communication. A base unit and a mobile unit are provided which are operable to communicate over an air interface having a plurality of channels. The method and system further include transmitting from the mobile unit a message on a selected channel for a first predetermined time. The channels are scanned at the base unit. Also, the message is detected at the base unit on the selected channel and the selected channel is used as an initial channel for a wireless communication link between the mobile unit and the base unit.

Abstract: An antenna system for a wireless communication system. The system includes an antenna configured to receive and transmit circular polarized transmissions and a drive system. The drive system is operable to produce at least two outputs having generally the same amplitude and an appropriate relative phase difference so as to create a circular polarization transmission from the antenna.

Abstract: A method for transmitting an alarm over a cordless broadcast system having a base station in communication with a mobile unit and a computer. The computer includes a speech recognition system. The method includes requesting an alarm setting for a specified time with a voice command at the mobile unit and storing the requested alarm setting in the computer. The alarm is broadcast at the specified time to the mobile unit.

Abstract: An improved mousepad (100) includes a telephone integrated therewith. A keypad (108) for the telephone is disposed beneath a mylar layer (130). The keypad (108) includes a plurality of capacitive switches (108a, 108b) disposed just beneath the mylar layer. In a mousepad mode, a mouse may be moved around the surface of the mylar in the standard fashion. In a telephone mode, the user may activate the keypad (108) by pressing the buttons which are viewable beneath the mylar.

Abstract: A wireless telecommunication device (10) and collapsibly retractable writing surface (50) therefor wherein the wireless telecommunication device includes an outer casing (12) and a collapsibly retractable writing surface (24) which is suitable for receiving and retaining written information thereon. The retractable writing surface (24) has an open position wherein the surface is disposed for receiving and retaining written information thereon and a closed position wherein the surface is fully retracted.

Abstract: A method for avoiding interference in a wireless telecommunication system is provided. The method includes providing communication between a first and second component at an initial frequency. A plurality of successive line quality indicators is determined at a line quality monitor of the first component. Consecutive line quality indicators are summed over a predetermined time to determine a slow hop count. A determination is made as to whether the slow hop count is greater than a slow hop threshold. A determination is made as to whether to provide communication with the first component at a second frequency when the slow hop count is greater than the slow hop threshold. This determination is based on a power level of the second component and a communication strength received from the second component at the first component. A signal is communicated from the first component to the second component requesting the second component to provide communication at the second frequency.

Abstract: A method for avoiding interference in a wireless telecommunication system is provided. The method includes providing communication between a first and second component at an initial frequency. A plurality of successive line quality indicators is determined at a line quality monitor of the first component. Consecutive line quality indicators are summed over a predetermined time to determine a slow hop count. A determination is made as to whether the slow hop count is greater than a slow hop threshold. A determination is made as to whether to provide communication with the first component at a second frequency when the slow hop count is greater than the slow hop threshold. This determination is based on a power level of the second component and a communication strength received from the second component at the first component. A signal is communicated from the first component to the second component requesting the second component to provide communication at the second frequency.

Abstract: The present invention comprises a system for mobile communications. The system comprises a base station (12) having logic for evaluating parameters relating to the quality of individual communication links (14a-17a) between the base station (12) and each of a plurality of mobile units and selecting those parameters that optimize the quality of the communication link (14-17) for each individual mobile unit. The system also comprises circuitry residing in each mobile unit for establishing an optimized communication link (14-17) with the base station (12). In accordance with another aspect of the present invention, a method is disclosed for mobile communications comprising three steps. In step one, parameters representative of transmission quality for individual communication links (14a-17a) between a base station (12) and each of the plurality of mobile units are monitored.