Abstract: A mobile workstation includes an adjustable-height horizontal tray and a pull-out keyboard tray mounted beneath the horizontal tray to support a keyboard. A device, such as computer terminal, mounts to the horizontal tray through installation into a vertically-mounted docking station mounted to the horizontal tray, or through a mounting bracket mounted adjacent to the horizontal tray. A tiltable bracket mounts the docking station to the horizontal tray, and a clutch assembly allows the angle of the bracket and the angle of the docking station and the computer terminal, to be adjusted to avoid glare on the terminal's display screen. With a mounting bracket, a tiltable bracket mounts a vertically-mounted display screen to the top of the horizontal tray.

Abstract: A mobile workstation includes an adjustable-height horizontal tray and a pull-out keyboard tray mounted beneath the horizontal tray to support a keyboard. A device, such as computer terminal, mounts to the horizontal tray through installation into a vertically-mounted docking station mounted to the horizontal tray, or through a mounting bracket mounted adjacent to the horizontal tray. A tiltable bracket mounts the docking station to the horizontal tray, and a clutch assembly allows the angle of the bracket and the angle of the docking station and the computer terminal, to be adjusted to avoid glare on the terminal's display screen. With a mounting bracket, a tiltable bracket mounts a vertically-mounted display screen to the top of the horizontal tray.

Abstract: A wireless network access point enclosure sized to fit in place of a panel in a standard hanging acoustical-panel ceiling. The enclosure includes a sealed pan that houses the network access point outside the room space, typically in the building space above the ceiling. The enclosure is designed to meet fire code regulations that apply to devices placed within a building's air-handling space. The enclosure includes a ventilated cover that mounts to the pan. The cover is substantially flush with the ceiling when attached to the pan. Only a small antenna, which mounts to a receptacle in the cover, extends into the room space. Power and communications cables for the network access point may be routed above the ceiling and through a cable receptacle in the pan. The enclosure also includes a plate within the enclosure for mounting the network access point and maintaining a ventilation space between the device and the enclosure pan.

Abstract: A cradle for holding a wireless terminal. The cradle includes a lower spring-loaded leveling tray and an upper bracket including two spaced-apart retainers that allow one-handed access to the wireless terminal using an ergonomically safe push-down-and-tilt motion. Easy removal is enhanced by using an optical communication link between the cradle and the wireless terminal. The optical communication link allows an optional articulating keyboard to communicate with the wireless terminal when the wireless terminal is in the cradle. A battery charging terminal in the leveling tray charges the battery in the wireless terminal. The leveling tray is automatically locked when the wireless terminal is installed in the cradle. When the wireless terminal is in the cradle, a solenoid may be activated to open the lock.

Abstract: A cradle for holding a wireless terminal. The cradle includes a lower spring-loaded leveling tray and an upper bracket including two spaced-apart retainers that allow one-handed access to the wireless terminal using an ergonomically safe push-down-and-tilt motion. Easy removal is enhanced by using an optical infrared (IRDA) coupling between the cradle and the wireless terminal. The IRDA coupling allows an optional articulating keyboard to communicate with the wireless terminal when the wireless terminal is in the cradle. A battery charging terminal in the leveling tray charges the battery in the wireless terminal. The leveling tray is automatically locked when the wireless terminal is installed in the cradle When the wireless terminal is in the cradle, a solenoid may be activated to open the lock.

Abstract: A system for managing power consumption of a computer by communicating power management events to a removable device of the computer. A device removal signal is transmitted to a device controller for the removable device in response to a power management event and while the device is installed within a socket of the computer. This device removal signal can provide notice of a power state change for the device, such as the interruption of electrical power to that device. This power state change is communicated by the device controller to a device driver in response to the device removal signal. Electrical power to the device is terminated in response to the power management event. A device insertion signal is transmitted to the device controller in response to another power management event and while the device remains installed within the socket. This device insertion signal provides notice of another state change for the device.

Abstract: An antenna that may be retrofitted for incorporation in an internal compartment of a computer terminal when a radio transmitter or receiver is installed in an expansion slot of the computer terminal. The present invention provides a radio receiver/transmitter communication system for a computer terminal. The computer terminal includes an expansion slot operative to receive a radio transmitter or receiver and includes an enclosed compartment defined in the housing of the computer terminal. The enclosed compartment is separate from the expansion slot. The radio receiver/transmitter communication system includes a printed circuit board and a radio frequency communication medium. The radio frequency communication medium is etched on a first side of the printed circuit board, thereby forming a circuit board antenna, and the printed circuit board antenna is positioned within the enclosed compartment of the computer terminal.

Abstract: A hand held data entry terminal that, upon initialization of a data entry program downloaded from a host computer, is capable of capturing product data, through either a terminal scanner or a data entry keypad, at locations remote from the host computer. A data entry program is downloaded to a battery-powered data entry terminal from a central host computer via an RF data transceiver located in the terminal. If the terminal scanner is functional and the product contains the necessary coded representations of data, the scanner may be enabled, through a first trigger located on a terminal handle, to scan the coded representations of data. Alternatively, the terminal operator may enter alpha/numeric product data through the terminal keypad. The data entry program contains a stack of key definition tables for the terminal keypad, allowing the terminal to be designed with a minimum number of data entry keys and a terminal display of maximum size.

Abstract: A frequency hopping spread spectrum wireless data communications network is disclosed. Time mark frames are transmitted by each base station at a regular cadence and each time mark frame contains all information necessary to determine the hopping sequence of channels, a sub-set of possible channels in use, and the particular channel upon which the time mark was transmitted. Receipt of the time mark resynchronizes a slot clock that is used by the wireless terminals in implementing a media access protocol with defined synchronous time slots. The base station to roaming terminal radio link is half duplex. Each base station broadcasts an end-of-message frame during a hop period that indicates that it has no more data to send during that hop. If there are no inbound messages a roaming terminal needs to send, it puts its receiver in a low power mode until the next hop time approaches.

Abstract: A frequency hopping spread spectrum wireless data communications network is disclosed. Time mark frames are transmitted by each base station at a regular cadence and each time mark frame contains all information necessary to determine the hopping sequence of channels, a sub-set of possible channels in use, and the particular channel upon which the time mark was transmitted. Receipt of the time mark resynchronizes a slot clock that is used by the wireless terminals in implementing a media access protocol with defined synchronous time slots. The base station to roaming terminal radio link is half duplex. Each base station broadcasts an end-of-message frame during a hop period that indicates that it has no more data to send during that hop. If there are no inbound messages a roaming terminal needs to send, it puts its receiver in a low power mode until the next hop time approaches.