Resources Contact Us Home
Wireless network for wideband indoor communications

Image Number 3 for United States Patent #4789983.

The present invention relates to a wideband communication network using wireless radio transmissions either on a stand-alone basis or to supplement a hard-wired network. The exemplary network comprises (a) a plurality of transceivers associated with separate users of the network; (b) optionally at least one concentrator associated with certain separate subgroups of wireless and possibly hard-wired transceivers for providing duplex operation; and (c) a central node (i) capable of providing both duplex communications directly via a radio channel using radio links with certain subgroups of the transceivers and via a hard-wired connection with each optional concentrator, and (ii) for polling the needs of all transceivers and directing all packets of information from active transceivers through the central node and to the destined transceivers during each frame period. The network also preferably includes diversity and resource sharing techniques to provide added protection against channel impairments on an as-needed basis.

  Recently Added Patents
Method and apparatus for detecting an intermittent path to a storage system
Signal processing apparatus and methods
Oral care implement accessory
Location-type tagging using collected traveler data
Dynamic reconstruction of a calibration state of an absorption spectrometer
Polyester resin for toner, electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming met
Resin composition, prepreg, resin sheet, metal-clad laminate, printed wiring board, multilayer printed wiring board and semiconductor device
  Randomly Featured Patents
Angle adjustment device
Glide runner support
Internal combustion engine variable valve characteristic control apparatus and three-dimensional cam
Etching method for silicon substrates and semiconductor sensor
Fork lifter comprising a slidable fork
Heat transfer plate, plate pack and plate heat exchanger
Rotary head drum apparatus and magnetic recording and playback apparatus
Guiding device for sewing material
Turbocharger with separately formed vane lever stops