An attachment device for use with a personal digital assistant (PDA) is provided which generally comprises a back surface, a base, and at least one securement arm. The securement arm(s) are resiliently deflectable to receive and retain the personal digital assistant under the force created in the deflection of the arms, and which allows the PDA to be selectively removed. The attachment device may include attachment apertures to secure the attachment device to a folio or other type of notebook, o...

A base station for a mobile communications system, a mobile communications system including the base station and a method of increasing base station capacity. Each base station antenna is coupled to a transmission line that may be connected to a triplexer. The triplexer separates uplink signals from a duplex signal on the transmission line. The uplink and downlink signals are both in two sub-bands that are separated by a third sub-band. The triplexer passes the uplink signal to a duplexer/combin...

The hang-up cup assembly (100) for a radiotelephone has a cradle (200) secured to a pedestal (300) using a ball (320) and a socket (220) of a ball-and-socket joint (120), a screw (400), and a dome nut (600). The ball-and-socket joint (120) is compressed by the screw (400) and the dome nut (600) to retain the hang-up cup assembly (100) in the desired position. The hang-up cup assembly (100) has a low profile, is easy to install, and can be adjusted by an end user by slightly loosing the easily-ac...

The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. Furthermore, APs can perform automatic power adjustment so that multiple APs can operate on the same channel while minimizing interference with each other. Wireless stations are ...

A tuner is provided for selecting, independently of each other, a plurality of radio frequency channels for simultaneous reception. The tuner comprises a plurality of up converters whose outputs are combined in a combiner. Each up converter operates independently of the other up converters to select a channel from a multi channel input signal and to convert the selected channel to a first high intermediate frequency. The intermediate frequencies of the up converters are different from each other...

A coextruded elongated tear tape comprises at least one layer of thermoplastic resin material monoaxially oriented in the longitudinal direction of the tape and a layer comprising adhesive. The method of making material for the tear tape comprises coextruding the layers. Apparatus for sealing tear tape to packaging material comprises an ultrasonic transducer and an anvil roll, the anvil roll having indicia representative of information formed in relief on the surface thereof and aligned with the...

Provided is to a communication apparatus and method using a human body as a medium, in which secure/normal data signals are transmitted/received to the inside and outside of a human body respectively, through at least two different frequency channels classified according to a predetermined reference value, to thereby efficiently use a frequency based on a physical characteristic of a channel and increase a data transmission rate while maintaining security.

The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. Furthermore, APs can perform automatic power adjustment so that multiple APs can operate on the same channel while minimizing interference with each other. Wireless stations are ...

A clamping device for mobile phones includes a fork-shaped link pivotally connected to a clamp seat at either end. Each clamp seat has a lateral side provided with slanting rack teeth. An elastic securing seat is disposed adjacent to the rack teeth and has stop elements for projecting into the rack teeth to force the clamp seats to displace only inwardly to be positioned in place. The securing seat further has slanting notches at its ends. A press rod provided with corresponding slanting notches...

A mobile station for measuring signal strength of a set of channels includes a synthesizer, a controller and a transceiver. During an idle period, the controller loads channel data of the set of channels contained into a memory block in the synthesizer. The synthesizer automatically selects the channel data for each channel stored in the memory block and generates a frequency signal corresponding to the selected channel data. The transceiver measures the signal strength data of the selected chan...