Abstract: A switched amplifying device for use in a wireless telecommunications receiver as an amplifier of an RF signal has an amplifying device electrically connected in parallel with a switch. The switched amplifying device has a bypass mode in which an electrical path of the RF signal bypasses the amplifying device and is connected to an RF output port. The switched amplifying device also has an amplification mode in which the electrical path of the RF signal flows through the amplifying device prior to presentation of the RF signal at the RF output. In the bypass mode, the amplification device is in an off state. Similarly, in the amplification mode, the bypass device is in an off state. Use of the switched amplifying device according to the teachings of the present invention in a receiver permits accommodation of a larger dynamic range in amplitude of received signal with less signal degradation and noise figure than in prior art amplification devices.

Abstract: A zero or low insertion force socket coupling mechanism is actuated by rotation of a flat blade screwdriver or other like tool. The actuation device includes a receptacle in the shape of the arabic letter “S.” Placing the blade of the screwdriver in the receptacle and rotating the screwdriver moves the upper portion of the apparatus relative to the lower portion to line up the pins with the sockets. The shape of the receptacle enables the force created by the twisting motion of the screwdriver to be placed on the sides of the receptacle by the sides of the blade, rather than the ends of the blade, which could damage the molded plastic component. As a result, the actuation device avoids the waste of space of convention lever actuated devices. Moreover, the actuation device enables the use of a commonly available tool to actuate the coupling mechanism.

Abstract: A power enhancing unit (50) is disposed between a linear power unit (12) and an industrial tool (10) that is operated by the power unit. The power enhancing unit (50) includes an input member (160) coupled to a power ram (26)of the power unit and upon application of a primary force from the power ram undergoes movement from a first position (232) to a second position (242). An output member (106) is coupled to the tool ram (94) and a power enhancing mechanism (166) is coupled to both the input member (160) and the output member (106) and arranged so that upon movement of the input member the output member undergoes movement and exerts a secondary force on the tool ram (94) that is greater than the primary force for a portion of the movement of the output member.

Abstract: An electrical connector for electrical connection to a circuit board (12) and for receiving a module card (16) and an operating circuit card (14) comprises a dielectric housing (24) having adjacent card-receiving areas (26, 28), first electrical contacts (18, 20) mounted in the dielectric housing and having termination sections (18c, 20c) for electrical connection with conductive members of the circuit board and contact sections (18a, 20a) extending into one of the card-receiving areas (28) for electrical connection to conductive members of the module card (16) when inserted into the one of the card-receiving areas, and second electrical contacts (22) mounted in the dielectric housing and having contact portions (22b) extending into the one of the card-receiving areas (28) for electrical connection with conductive members of the module card (16) and extending into the other of the card-receiving areas (26) for electrical connection with conductive members on the operating circuit card (14) when inserted into

Abstract: A roaming decision is made and roaming channel selected in a wireless communications system based upon an evaluation of the operability of a data link layer interconnection, In a connection based protocol, the peer to peer data link layer interconnection is implemented through use of a unique connection identifier known in each peer functional layer of the data link interconnection. If the connection identifier has a value outside of a valid range, the interconnection is presumed nonoperational and the system makes a decision to roam.

Abstract: Replaceable surge protector assemblies suitable for telephone network interfaces. It has a surge suppresser element covered by a receptacle. In one embodiment the receptacle has an electrically insulating, hollow housing having a top, a floor, opposing side walls, a closed end and an open end defining a central cavity having inside walls. A slot extends through the floor from the open end a part of the distance toward the closed end. A handle projects outwardly from the top. In another embodiment, the receptacle has an electrically insulating, hollow housing element having a tops opposing side walls, opposing ends and an open bottom defining an central cavity. An electrically insulating floor element mates with the open bottom of the housing. The floor element has at least one opening through the floor for receiving wire leads therethrough. Means are provided for attaching the floor element to the housing element at the open bottom. A handle also projects outwardly from the top.

Abstract: An electrical connector comprising an actuating lever for mating the electrical connector with a complementary connector, the actuating lever including a deflectable lever leg with a pivot hole therethrough; and a connector housing having a wall with a pivot pin extending therefrom and being receivable within the hole of the lever leg to establish a pivot for the actuating lever; characterised in that: guide members and cams aligned with the pivot pin are included as part of the connector housing; and guide surfaces and camming surface on the actuating lever that are complementary to the respective guide members and cams of the connector housing such that the hole is aligned with the pin and an end of the leg is deflected over the pin, the lever further including a relief feature so that the lever can be operated once the pivot pin is received in the hole.

Abstract: The present invention provides a card connector circuit board, which is easy to manufacture and which can provide good electrical characteristics with respect to the signal and ground lines. The circuit board (10), which is mounted on a back surface of a mother board mounted type card connector (80) in which card-accommodating sections (81, 82) are disposed in two stages that are stacked in the direction of height, is formed as a two-sided circuit board which includes opposite surfaces (11, 12). Circuit board (10) has a first card-connection section (91), which is connected to the card-accommodating section (81), and a second card-connection section (92), which is connected to the card-accommodating section (82).

Abstract: The present invention is directed to a touch screen sensor 10 that reduces or eliminates echoes or reflections of ultrasonic waves generated by one or more transducers 12. The touch screen sensor 10 is comprised of a wave absorption material 16 positioned around at least a portion of the perimeter 35 of the touch screen sensor 10.

Abstract: An electrical contact (1) is shown having a conductor connection region (2) for connection to an electrical conductor wire and a contact-making region (3) for making contact with a complementary contact pin is specified, the contact-making region essentially being designed in the form of a box with two side walls (4, 5), a top wall (6) and a bottom wall (7), the bottom wall (7) and the top wall (6) having a different width in the direction perpendicular to the plug-in direction, in such a way that the side walls (4, 5) run in a manner inclined with respect to the bottom and top walls (6, 7) and with respect to one another.

Abstract: The invention relates to an electrical connector with a housing with a plurality of contact chambers arranged in at least one row, with contacts arranged in the contact chambers for making contact with a mating contact and with a hinged flap comprising projections which engage in the contact chambers in an end locking position of the flap and secure the contacts therein, wherein the flap can be introduced into an shaft bearing with a shaft perpendicular to the plug-in direction and is rotatably mounted there.

Abstract: The invention is a Pseudomorphic transistor structure having a semiconductor layer having a 2DEG layer therein, a Schottky layer, a transition layer and an ohmic contact layer on the transition layer, wherein a double recess structure is disposed through the ohmic layer onto the transition layer in which one or two layers of InyGa1−yP are used as etch-stop layers to define the depth of the recess.

Abstract: A key receiving member (140) for an electrical connector includes a body (142) having a key receiving slot (144) adapted to receive a key of a mating connector on one side thereof; and a plurality of complaint beams (146) extending downwardly from an opposite side of the body (142). At least some of the beams (146) include a retention projection (148) extending outwardly therefrom and adapted to engage a retention ledge (129) within a connector housing aperture (124) upon insertion of the member (140) into the aperture. At least one of the retention projections (146) includes a locking protrusion (150) extending outwardly therefrom for receipt into one of a plurality of detents (130) spaced around the ledge (129).

Abstract: A signal connector assembly with a plug contact within a plug having a high resistive portion. When the plug of the assembly first makes contact with the electrical receptacles within a mating receptacle, the high resistive portion prevents a current surge. As the plug is further inserted into the receptacle, the energy passing from the plug to the receptacle is gradually increased. Eventually, the receptacle contacts within the receptacle pass the high resistive portion and make contact with the conductive portion of the plug contact, thereby permitting transmission of valid signals without the generation of spurious errors.

Abstract: A lateral conduction MOS structure characterized by reduced source resistance and reduced pitch. The structure includes a semiconductor substrate having an epitaxial semiconductor layer thereon, the substrate and epitaxial layer being of the same conductivity type. The structure further includes a source layer and a drain layer, each layer being of a second conductivity type, and a channel layer disposed between the source layer and the drain layer. The channel layer has an oxide layer and a gate disposed thereon. At least one of a wet anisotropic and a reactive ion etching step is performed to define a trench having a maximum width of about from 4-6 microns and a depth that extends well into the substrate. An electrically conductive via is then formed by deposition of metal into the trench to thereby establish a low resistance path between the source and the substrate ground.

Abstract: An electrical power control system is adapted for controlling power and lighting in a building. Switch controls have either relays or triacs, controlled by microprocessors, to switch power on electrical branch circuits. An interface device 122 communicates with the switches 124,126, arranged in a multidrop configuration, with variable length data packets over serial branch circuits or data buses 142. In addition to being controlled by the interface device 122, the switch controls also have local switch actuators. The actuation of the local switch controls can be used by the interface device 122 as a control inputs to initiate other actions. Adaptive polling of switch controls is used to minimize system response time, and both transmit and receive signals are carried between the switch controls and the interface device 122 at different times on the same twisted pair wires. The interface device 122 can also communicate with a home automation system controller.

Abstract: An electrical receptacle contact is provided having contact beams which are asymmetrically opposed, defining a terminal receiving section therebetween. Asymmetrically opposed contact beams may have various widths to provide an appropriate spring force for a selected plating material, while ensuring that the receptacle contact maintains the same overall dimensional shape as contacts made with a different plating material. Although allowing for variable spring rate in limited dimensioned contact, susceptibility of fracture of the contact of the present invention during forming is minimized.

Abstract: An assembly of a connection end of a heating element and a connector matable therewith includes a heating element having side-by-side-rod sections, a ground strap mounted to the rod elements and a connector mountable to a frame of an electronic device. The connector includes at least two power terminals and at least one ground terminal. The power terminals are receptacles and the rod sections of the heating element include an integral male lead dimensioned to be directly connected to respective receptacle terminals. The ground strap is disposed over the rod sections and is adapted to mate with the ground terminal in the connector.

Abstract: An applicator (10) for crimping a terminal (14) onto a conductor and inserting the crimped terminal into the housing (16) of a partially assembled connector (12) includes a seating sensor for assuring that the terminal is fully inserted into the housing. A backup member (56) which is arranged to engage side edges (184) of the electrical terminal for preventing axial movement additionally makes electrical contact therewith. The pusher member includes a projection (188) that makes electrical contact with the end of the terminal only when the housing and terminal are fully seated. Electrical leads (102, 146) are electrically connected to the backup member and the pusher member so that continuity can be verified after the connector housing is fully seated. In the event that continuity is not detected, an error signal is generated indicating a malfunction.

Abstract: An electrical connector (10) includes a housing having a plurality of contacts (24) mounted therein and at least one screw member (40) attached to the housing for securing the housing to a mating connector (100). The screw member (40) includes a head (42) with a ratchet (50) disposed along a forward end (48) thereof. The housing includes at least one protrusion (54) adapted to engage the ratchet (50) of the screw member. The housing further includes at least one spring member (26) adapted to provide axial compression between the ratchet (50) and the housing protrusion (54) to assure the ratchet (50) remains engaged to the protrusion (54) thereby preventing the screw member (40) from inadvertently becoming loosened.