Abstract: A method and system for over-the-air testing of a radio transreceiver is described. The radio transreceiver is placed in an enclosure box that is shielded to prevent leakage of RF energy. A nest assembly holds in place the radio transreceiver during testing to provide repeatable results with different radios. The testing assembly allows high volume characterization of the radio transreceiver performance in an environment rich with interfering RF signals.

Abstract: A method of transmitting information over a feed back channel of a communication system that has multiple antenna systems is provided. Long term channel condition information is obtained from received measured and/or calculated channel parameter values. The obtained long term channel condition information is arranged in a particular manner and transmitted over a defined time period during which the long term channel condition information varies relatively slowly. Because the long term information remains relatively constant for one or more defined time periods, the amount of bandwidth needed to communicate this value is small because it need only be communicated occasionally. Thus only a small bandwidth needs to be allocated for transmitting this long term information.

Abstract: The invention concerns a method and a system for rapidly establishing a communication, particularly a Bluetooth type communication, between at least one reader and a plurality of communicating objects. Each communicating object and said reader have a communication protocol. Each communicating object has a communication address. The method comprises: the step of defining a unique communication address for all of the communicating objects; the step, for said reader, of determining whether at least one communicating object is present in the environment in which said reader is located, by sending a request to the unique communication address of all the communicating objects; the step, for each communicating object that receives said request, of revealing its presence to said reader by sending a response signal that is time-shifted relative to the response signals sent by the other communicating objects.

Abstract: In a portable communications device, information provided by an identification means is used to establish communication between communication means and a second device, such as a point of sale machine, to ensure that the correct portable communications device is connected to the second device where there may be a large number of second devices and a large number of portable communications devices in close proximity.

Abstract: An amplifier device for amplifying RF communication signals compatible with IEEE 802.11 standards. An amplifier circuit is housed within a cylindrical metal housing that provides excellent heat dissipation and requires no mounting hardware for installing the device within a communication system. The metal housing with an integrated lightning arrestor creates a watertight seal to protect the amplifier circuit from damage when installed outdoors and the amplifier circuit is compatible with both 2.4 GHz and 5.8 GHz frequency applications.

Abstract: A cellular communication system includes first and second base stations and a user equipment. A Radio Network Controller controls a handover of the user equipment between the base stations by either forwarding data of the communication to both the first and second base stations or to only one of the first and second base stations dependent on a Quality of Service (QoS) characteristic of the communication of the user equipment. The QoS characteristic can specifically be an indication of a delay constraint for the communication service such as an indication of whether the service is a real-time service or a non-real time service.

Abstract: A notification service and correspondingly configured wireless device for providing asynchronous communications over a communication network for an application of the wireless device in communication with a selected service. The selected service has a source schema definition including an output notification definition associated with a correlation ID. The notification service comprises a reverse schema definition of the source schema definition such that the reverse schema definition includes an input notification operation definition corresponding to the output notification definition. The input definition is associated with the correlation ID and a parameter list of the output definition. The output definition is for defining an output message of the selected source that corresponds to an input message of the notification service defined by the input definition.

Abstract: A system, apparatus, method and article to select data rates for a wireless communication system are described. An apparatus may include a media access control processor to monitor interference levels for a receiver, estimate throughput values for each interference level, and select a data rate based on the throughput values. Other embodiments are described and claimed.

Abstract: A wireless communications system has a plurality of uplink and downlink channels available for use. Channels are distributed among different operators who may plan their networks in a non-ideal manner. A terminal uses an uplink channel and a downlink channel selected from those available and performs a method to check whether it is causing interference to other users of the system. The method determines whether the terminal is transmitting at a power which may cause interference to an adjacent uplink channel. If so, the terminal determines which downlink channel is associated with the adjacent uplink channel and monitors that downlink channel. The terminal may then operate in a manner which will reduce interference.

Abstract: Disclosed is a charging cradle for seating a portable device both horizontally and vertically. The charging cradle for a portable device includes a cradle body, a support body supporting the cradle body on a rear side of the cradle body, a first slot defined and surrounded by an inner wall of the cradle body, so as to seat the portable device therein in such a manner that the portable device can stand in a vertical direction of the cradle body, and a second slot formed before the first slot and extending in a horizontal direction of the cradle body, so as to seat the portable device therein in such a manner that the portable device can be placed in the horizontal direction.

Abstract: A method for determining attenuation of a transmit/receive switch for attenuating inbound RF signals begins by enabling the transmit/receive switch to provide a loop back configuration between a transmitter section and a receiver section of a radio frequency integrated circuit. When the transmit section provides a test RF signal to the receiver section the processing continues when the receiver section measures the signal strength of the test RF signal to produce a 1st signal strength. The processing continues by enabling receive attenuation mode of the transmit/receive switch. The processing continues when the transmit section provides another test RF signal to the receiver section via the transmit/receive switch in the receive attenuation mode to produce an attenuated test RF signal. The processing continues when the receive section measures the signal strength of the attenuated test RF signal to produce a 2nd signal strength.

Abstract: A portable electronic device provided with interface means which include an LCD and function keys (7, 8). The device is provided with a left-hand mode and a right-hand mode to facilitate operation of the interface whether the device is held in the right hand or the left hand. A control means is provided for selectively transferring from one mode to the other mode.

Abstract: A digital audio file reproduction apparatus, system and method having wireless transfer capability with a remote device. The apparatus includes a memory and a controller coupled to store and recall digital audio files with the memory. A transceiver operates to transmit and receive digital audio files according to a radio protocol. An audio circuit receives audio files from the controller and outputs the audio files for analog audio reproduction. The controller responds to the receipt of an in-range radio signal by the transceiver, from the remote device, to exchange digital audio files with the remote device via the radio protocol. A memory card slot is adapted to accept plural user-replaceable memory cards. The apparatus compresses and decompresses the digital audio files, which may be according to the MP3 format. A microphone circuit provided to enable the recording and storing of voice messages.

Abstract: A transmission and reception apparatus and method for use in a wireless communication system, and an apparatus and method for adaptively transmit and receive a signal according to channel state in a wireless communication system. An apparatus for adaptively performing transmission according to a state of a channel transmitted from a transmitter to at least one receiver includes a signal to interference ratio estimator for estimating a signal to interference ratio of the channel using a signal transmitted from the at least one receiver; and an adaptive transmitter for transmitting data to the at least one receiver on a basis of the estimated signal to interference ratio.

Abstract: A system having a UHF RFID transceiver is adapted to communicate exclusively with a single electro-magnetically coupled transponder located in a predetermined confined transponder operating region. The system includes a near field coupling device comprising a plurality of lines connected in parallel with an unmatched load. The near field coupling device may be formed, for example on a printed circuit board with a plurality of electrically interconnected traces and a ground plane. The system establishes, at predetermined transceiver power levels, a mutual electro-magnetic coupling which is selective exclusively for a single transponder located in a defined transponder operating region. Also included are methods for selective communication with the transponder in an apparatus such as a printer-encoder.

Abstract: A portable communication apparatus equipped with up/down keys. The portable communication apparatus includes a main housing, a sliding housing adapted to slide to be opened and closed while continuously facing the main housing, a number of keys arranged in a predetermined position on the top surface of the main housing and adapted to be moved up to be exposed and moved down to be hidden, when the sliding housing is opened and closed, respectively, and an elastic body positioned below the keys to provide a force for moving them up.

Abstract: A communication arrangement for a household appliance device. The arrangement includes a first communication part including a transmitter for transmitting a wireless signal, and a second communication part, remotely located from the first communication part, including a receiver for receiving the wireless signal. One of the first and second communication parts is associated with the appliance device. In one aspect, the second communication part includes a processor to process the signal and nullify the effects of noise transmitted in the signal. In one aspect, the signal is an RF signal, and the second communication part includes means to over sample the signal.

Abstract: The present invention provides a wireless communication apparatus that allows miniaturization of the wireless communication apparatus as a whole and improvement of characteristics of an antenna device. A notch portion is formed in a shield case formed of a conductive material that covers a radio-frequency wireless communication circuit provided on a printed wiring board so as to house the radio-frequency wireless communication circuit within the shield case. By feeding power to the notch portion, the shield case is operated as a slot antenna. At the same time, the shield case blocks undesired electromagnetic waves emitted from the radio-frequency wireless communication circuit. Alternatively, a notch antenna is formed by opening one end of the notch portion formed in the shield case. By thus making the shield case function as electromagnetic wave shielding member and also function as the slot antenna or the notch antenna, the wireless communication apparatus as a whole is miniaturized.

Abstract: Short-distance radio communication equipment having a Bluetooth communication feature can maintain a stable reception status by automatically adjusting the reception status of an antenna when the reception status thereof deteriorates.

Abstract: Modular, portable data collection terminals are disclosed for use in mixed wireless and hard-wired RF communication networks, wherein various radio transmitter modules and associated antennas may be selectively added to a base terminal unit to solve networking problems associated with specific types of business environments. Modularity exists in both the hardware (splitting data collection and processing control circuitry from radio transceiver control circuitry) and software (splitting transceiver-specific, lower level communication protocol from generic, higher 1 vel communication protocol). The control circuitry, including associated microprocessors devices, interact to selectively activate communication circuits to perform necessary communication or data processing functions and enter and remain in a power-saving dormant state during other times. To support such dormant or “sleeping” states, a series of communication protocols provide for channel access to the communication network.