Abstract:
A remote base controller (20) communicates with a base site controller (22) as a macro cell, converts outbound macro cell traffic from the base site controller (22) into outbound isolated cell traffic, inbound isolated cell traffic into inbound macro cell traffic, and communicates, via a cable head end (18) establishing an internet protocol internet connection with a customer premise equipment (16), with a remote base (14) that provides cellular service to a mobile telephone (12) located within an isolated cell (2).
Abstract:
To facilitate fair access to a channel, a controller (200) adds a member-specific channel-access delay, including adding at least one of a first member-specific delay (308) to a transmission of a free channel indication from the controller to a member (118-128) after the channel becomes free; and a second member-specific delay (314) before processing a request to talk received by the controller from the member. The controller selects (302) the member-specific channel-access delay such that a time required for the member to gain access to the channel after the channel becomes free is essentially equal to the time required for any other participating member to gain access to the channel after the channel becomes free.
Abstract:
Proximity of a moving vehicle with respect to a lane boundary is ascertained and the degree of proximity is used to provide a variable signal to the driver of the vehicle to alert the driver to such proximity. In one embodiment, the variable signal to the driver includes haptic sensations that are imparted through, for example, the steering wheel and/or the driver's seat. Visual and audible signals can also be used if desired. The signal itself can vary in intensity with respect to boundary proximity in a variety of ways, including through both linear and non-linear patterns, variable maximum signal intensity, and so forth.
Abstract:
A method of selecting one or more active slave wireless devices from a plurality of active/parked slave wireless devices is implemented by a master wireless device. The master wireless device initially assigns sequential weights to each active/parked slave wireless device, and subsequently designates one or more of the active/parked slave wireless devices as active slave wireless device(s) based partially or entirely on the assigned sequential weights. The assignment of sequential weights can be accomplished by assigning each active/parked slave wireless device to one of a plurality of ranked groups collectively representative of various traffic types between a base site and the active/parked slave wireless devices. Each active/parked slave wireless device is then sorted within its respective group.
Abstract:
An organic semiconductor device (11) can be embedded within a printed wiring board (10). In various embodiments, the embedded device (11) can be accompanied by other organic semiconductor devices (31) and/or passive electrical components (26). When so embedded, conductive vias (41, 42, 43) can be used to facilitate electrical connection to the embedded device. In various embodiments, specific categories of materials and/or processing steps are used to facilitate the making of organic semiconductors and/or passive electrical components, embedded or otherwise.
Abstract:
A method for creating an under bump metallization layer (37) is provided. In accordance with the method, a die (33) is provided which has a die pad (35) disposed thereon. A photo-definable polymer (51 or 71) is deposited on the die pad, and an aperture (66) is created in the photo-definable polymer. Finally, an under bump metallization layer (37) is deposited in the aperture. A die package is also provided comprising a die having a die pad (35) disposed thereon, and having an under bump metallization layer (37) disposed on the die pad. The structure has a depression or receptacle (57) therein and has a thickness of at least about 20 microns.
Abstract:
A power measurement element (106) measures (302) the wide-band received signal power of a receiver (102), and a wide-band AGC system (108) transfers (306) receiver gain control from an on-channel AGC system (110) to the wide-band AGC system, when the wide-band received signal power exceeds a pre-programmed threshold for longer than a pre-programmed delay time. The wide-band AGC system is arranged and programmed to decrease (308) a front-end gain of the receiver through a plurality of gain steps of a pre-programmed size (208) applied at a pre-programmed rate until the received wide-band signal power falls below the pre-programmed threshold.
Abstract:
A meso-scale MEMS device having a cantilevered beam is formed using standard printed wiring board and high density interconnect technologies and practices. The beam includes at least some polymer material to constitute its length, and in some embodiments also comprises a conductive material as a load-bearing component thereof. In varying embodiments, the beam is attached at a location proximal to an end thereof, or distal to an end thereof.
Abstract:
A feedforward amplifier circuit (30) compensates for distortion introduced into an amplified input carrier signal (34) by amplifying and feedforwarding a distortion signal component from one or more of the amplifiers (32a-32n) in an amplifier array (32) used to amplify the input carrier signal (34). Specifically, a main power amplifier (31) includes a plurality of combined power amplifiers (32a-32n) for amplifying the input carrier signal (34) to create an amplified carrier signal with a carrier signal component and a distortion signal component. The amplified carrier signal (34) is amplified on a main output path. A feedforward error path coupled to an output of at least one of the plurality of combined power amplifiers (32a-32n) receives a coupled amplified carrier signal output from the at least one of the plurality of combined power amplifiers (32a-32n), cancels a corresponding carrier signal component from the coupled amplified carrier signal, and feedforwards the remaining distortion signal component of the coupled amplified carrier signal to the main output path to cancel the distortion signal component from the amplified carrier signal.
Abstract:
A power amplifier circuit (30, 60) improves the linearity of an amplified output signal. The power amplifier circuit (30, 60) includes an input (33, 63) for receiving a carrier signal (34, 64) and an array of combined amplifiers (32, 62) of a predetermined type for amplifying the carrier signal (34, 64). At least one amplifier (48, 78) of the predetermined type is located between the input (33, 63) and the array of combined amplifiers (32, 62) for amplifying the carrier signal (34, 64) to produce a predistorted carrier signal (34b1, 64b1) with a carrier signal component and a distortion component to condition the carrier signal (34, 64) for input into the array of combined amplifiers (32, 62), and specifically to compensate for nonlinearities produced by the array of combined amplifiers (32, 62).