Abstract: A multifunctional ventilator interface for selectively providing ventilation and continuous oxygen therapy to a patient includes tubing defining a high-pressure gas lumen, a low-pressure gas lumen, and a pressure sensing lumen, a manifold housing defining a gas pathway, a jet pump housing coupled to the manifold housing and defining an entrainment port, a sleeve rotatably engaged to the jet pump housing, and a jet nozzle defining high- and low-pressure jet nozzle outlet ports operative to introduce gas from the high- and low-pressure gas lumens into the gas pathway.

Abstract: A scalable Ethernet switch includes modules which can be interconnected to provide a single, virtual switch. The modules may be of uniform physical size and shape relative to a standard telecommunications rack. When greater capacity is required, an additional module is mounted in a rack and interconnected with the other modules, e.g., in a bi-directional ring. Enhanced port density is provided by interconnecting the modules with 12 GbE links which operate on standard 10 GbE wiring and connectors. Consequently, throughput between modules in increased relative to standard 10 GbE links without increasing form factor. Further, transmission power control can be implemented such that modules of the virtual switch may be physically adjacent or separated by distances of several meters.

Abstract: A scalable Ethernet switch includes modules which can be interconnected to provide a single, virtual switch. The modules may be of uniform physical size and shape relative to a standard telecommunications rack. When greater capacity is required, an additional module is mounted in a rack and interconnected with the other modules, e.g., in a bi-directional ring. Enhanced port density is provided by interconnecting the modules with 12 GbE links which operate on standard 10 GbE wiring and connectors. Consequently, throughput between modules in increased relative to standard 10 GbE links without increasing form factor. Further, transmission power control can be implemented such that modules of the virtual switch may be physically adjacent or separated by distances of several meters.

Abstract: A device for processing image data relating to bar codes is described. In one embodiment a bar code verification device is provided having an ergonomic form factor characterized by a domed hand held trigger and a viewing window. The verification device may be disposed in a network that includes a host processor system and other bar code reading devices which may include other bar code verification devices. Processing circuitry for processing image signals corresponding to printed bar codes may be partially disposed within the hand held verification device and partially disposed within a host processor system spaced apart from and associated with the hand held verification device. The hand held verification device may be in wireless communication with the host processor system to which it is associated.

Abstract: A scalable Ethernet switch includes modules which can be interconnected to provide a single, virtual switch. The modules may be of uniform physical size and shape relative to a standard telecommunications rack. When greater capacity is required, an additional module is mounted in a rack and interconnected with the other modules, e.g., in a bi-directional ring. Enhanced port density is provided by interconnecting the modules with 12 GbE links which operate on standard 10 GbE wiring and connectors. Consequently, throughput between modules in increased relative to standard 10 GbE links without increasing form factor. Further, transmission power control can be implemented such that modules of the virtual switch may be physically adjacent or separated by distances of several meters.

Abstract: A method of operating a terminal at an airport beyond security screening, the terminal having a housing, a display, a reader configured to read data from an information bearing medium comprising the steps of: reading a personal identification; performing at least one of the following functions: gate check-in; employee access terminal to a jetway; changing seats; ordering meals; accessing frequent flier programs; processing boarding passes; reading passports and displaying flight information. A method of operating a terminal at a restaurant, the terminal being hand held and having a housing, a display, a reader configured to read data from an information bearing medium comprising the steps of: reading personal identification; performing at least one of the following functions: ordering meals; bill payment; displaying menu items; viewing meal order status; and verbal communications.

Abstract: A transaction terminal (10) having a touch screen (20) disposed in a recess (30) in the terminal housing (12) includes an adaptor (25) for facilitating use of the touch screen by persons that are vision-impaired, hearing-impaired or dexterity-challenged. The adaptor (25) is selectively positionable in operative engagement with the touch screen (20). The adaptor (25) includes an insert (50) and a keypad (60, 160, 260). The insert (50) is supported on terminal housing (12) with deck (52) disposed over and in spaced relationship to the touch screen. The deck (52) has at least one discrete opening therethrough. The keypad includes at least one key juxtaposed relative to said least one discrete opening in said deck of the insert. Upon depression of the key, contact is made with a selected portion of the touch screen (20).

Abstract: A point of sale transaction terminal that has a signature capture pad mounted within a platen that is recessed within the top surface of the terminal housing. A screen protector is mounted over the signature pad and is registered thereon so that the protector covers the signature pad. A bezel is mounted upon said platen within the recess of the housing so that the bezel surrounds the periphery of the protector and the capture pad. A latching mechanism is located beneath the bezel which serves to removably secure the bezel to the platen. An access port is provided in said housing that allows restricted access to the latching mechanism for unlatching the bezel.

Abstract: The present invention is a bar code verification device having an ergonomic form factor characterized by a domed hand held trigger and a viewing window. The verification device may be disposed in a network that includes a host processor system and other bar code reading devices which may include other bar code verification devices. Processing circuitry for processing image signals corresponding to printed bar codes may be partially disposed within the hand held verification device and partially disposed within a host processor system spaced apart from and associated with the hand held verification device. The hand held verification device may be in wireless communication with the host processor system to which it is associated. The bar code verification system may include signal enhancement modules which interpolate constructed pixel values from actual pixel values and which correct for signal degradation resulting from high frequency spatial sampling.

Abstract: The invention is a hand held computer device having a housing including a top or upper surface, a lower surface and finger saddle ridge protruding downwardly from the lower surface. The finger saddle ridge has two finger receiving surfaces and is sized to accommodate a pair of human fingers such that a first finger contacts the front surface of the finger saddle and a second finger contacts the rear surface of the finger saddle. When an operator's fingers straddle the finger saddle ridge, the hand held computer device pivots about a pivot point defined between the fingers. The device can thus be readily maneuvered into a downward pivoting position, highly useful for decoding bar codes, and an upward pivoting position, highly useful for display viewing and applications involving display viewing such as web browsing and data input.

Abstract: An optical device for reading optical indicia, including: an optical imager including a first wireless transceiver and a base unit including a second wireless transceiver in communication with the first wireless transceiver. The base unit is configured to receive the optical imager and position the optical imager in an orientation so that the optical imager may be used in a presentation mode.

Abstract: The invention is a transaction terminal having an encryption mode apparatus comprising a secure information entry circuit and a secure mode indicator. The secure information entry circuit is operable to execute an encryption routine including steps that involve application of an encryption algorithm. Further included in the secure mode information entry circuit is cryptographic firmware which adapts the secure information entry circuit so that an encryption mode signal is caused to change state when an encryption routine is called. The indicator of the encryption mode apparatus is made responsive to the encryption mode signal so that the indicator indicates to a user as to whether data entered into the terminal will be encrypted by the terminal.