Abstract: A spread-spectrum system having an assignor, a spread-spectrum processor, a call processor, and an information-channel-mode modifier. The assignor assigns each information signal arriving at the spread-spectrum system to a message-code signal. Each of the message-code signals supports a pre-determined information-channel rate. Several information signals have different channel rates, and each information signal is assigned according to the required channel rate. The spread-spectrum processor generates a pilot-code signal, and spread-spectrum processes the information signals with the message-code signals to generate a plurality of spread-spectrum processed-message signals, respectively. The message-code signals are synchronized to the pilot-code signal. The call processor provides a call-type signal corresponding to the information signal rate for the several information signals having several different channel rates.

Abstract: An automatic focusing camera which includes an image sensor is provided having a fixed lens system with a lens having an object side and an image side. The fixed lens system is located in a fixed position relative to the image sensor. A mirror is moveably positioned between the image side of at least one lens and the image sensor. The mirror is located at an angle such that an image observed through the fixed lens system is reflected toward the image sensor. An actuator is connected to the mirror and moves the mirror relative to the lens system to change a distance between the lens system and the image sensor to adjust an object focal length between an object and the object side of the lens.

Abstract: A system and method for reducing the unused capacity of a wireless communication channel utilize the data fields of an SB in order to signal physical layer control signaling for coordination between a Node B and a UE. The control signaling may include improved reception of SBs, enclose transmit power control commands or any physical layer control signaling for coordination between the UE and the Node B for synchronization timing advance or reconfiguration of the physical channel. This system and method may be applied independently to the uplink and the downlink.

Abstract: A base station receives access opportunities and packet data over a common packet channel. The common packet channel is defined by a predetermined set of codes and has a plurality of access opportunities. Each access opportunity is defined by a time slot and a signature. A code selection controller selects a currently unused code based on a code associated with a received access opportunity, such that a code, if available, is selected in response to receiving a signature in one of the time slots. The access opportunity defined by the received signature and the one time slot. A transmitter transmits an identifier of the selected available code. The transmitter sends communications encoded with the selected code.

Abstract: The sensitivity adjusting equipment applied to a photoelectric smoke detector is provided. The photoelectric smoke detector includes a luminous component for providing an input light and a detecting component for receiving an even output light. The sensitivity adjusting equipment includes a light-scattering device having a scattering component and an adjustable hole for scattering the input light evenly and adjusting an intensity of the input light so as to output the even output light to the detecting component. The sensitivity adjusting equipment also includes a movable platform having a first brace connected to the photoelectric smoke detector and a supporting base having a second brace connected to the light-scattering device. The movable platform is moved to make the photoelectric smoke detector and the light-scattering device combined to adjust the sensitivity of the photoelectric smoke detector.

Abstract: A membrane pump (104) with an operating membrane (1) delimiting a conveying space (2), and a supplemental membrane (3) arranged on the side of the operating membrane (1) facing away from the conveying space (2), with a membrane interspace (4) provided between the operating membrane (1) and the supplemental membrane (3) as well as with a pump drive for oscillating movement of the operating and the supplemental membranes (1, 3) in the same direction. The membrane interspace (3) is joined with at least one suction channel (7) for relieving pressure of the membrane interspace (4). The membrane interspace (4) is pneumatically joined through the at least one suction channel (7) with the suction side of this membrane pump (104). The membrane pump of the invention (104) has a high suction capacity without the problem of buckling of the elastic operating membrane (1) in the intake phase.

Abstract: A subscriber unit receives a plurality of first spread spectrum signals. Each first spread spectrum signal has a first code. An impulse response of multipath components of each received first spread spectrum signal are analyzed to determine a first received component of that received first spread spectrum signal. In one embodiment, for each received first spread spectrum signal, a second spread spectrum signal having a second chip code time synchronized to the first received component of that received first spread spectrum signal is transmitted. In another embodiment, a code timing difference is determined between the first received components of the received first spread spectrum signals. The code timing difference is transmitted.

Abstract: A method for using a wireless digital base station to receive, process and transmit a plurality of communications having independent data rates establishing a first communication channel having a first data communication rate to support a first communication; determining the data rate required to support the first communication; selecting one or more transmission channels, from a plurality of available transmission channels, required to support said required data rate; and transmitting the first communication using one or more selected transmission channels. The plurality of available transmission channels includes at least one B or D channel.

Abstract: A user equipment (UE) for a wireless time division duplex communication system which uses code division multiple access. The system communicates using communication bunts that have unique channelization codes and corresponding midamble codes where each midamble code is uniquely related to one or more channelization codes. The UE has a midamble detector which detects each midamble code in a received communication burst. A logic block determines the channelization codes related to each detected midamble and a channelization code detector detects channelization codes from among channelization codes determined by the logic block. A multiuser detection device recovers data from the received communication burst based on the detected channelization codes. Where all midamble codes are uniquely related to one channelization code, the channelization code detector is not needed.

Abstract: A method is disclosed for receiving transmitted signals in the presence of CW interference in a communication system that determines the presence of a code in a received signal by comparing with a detector threshold calculations made in accordance with a sample of a received signal. Such systems include but are not limited to those incorporating a Sequential Probability Ratio Test. The method includes obtaining a first input power value of the received signal at a first sample time and obtaining a second input power value of the received signal at a second sample time. The first and second power values are compared in order to provide an input sample comparison and the forgoing steps are repeated in order to provide a plurality of input sample comparisons. The detector threshold is adjusted in accordance with the plurality of sample comparisons. The CW signal can be strongly correlated with a short code used for the acquisition purposes.

Abstract: A combined gear change and brake control unit in a support body which can be fastened to a bicycle handlebar. The brake control lever and gear change control unit are carried by a support body. The gear change unit has a rotatable shaft attached to a pulley with an end portion of a derailler control cable wound thereon. The shaft is subject to a return torque that turns the shaft to release the cable. The unit has a gear change lever that controls the rotation of the shaft in a direction that winds the cable onto the pulley and a cable release button. The gear change control unit includes a ratchet mechanism that leaves the shaft free to turn by a predetermined amount in the release direction of the cable.

Abstract: A method for utilizing a rough insulator to enhance metal-insulator-semiconductor reliability is provided. The method includes steps of: (a) providing a semiconductor substrate; (b) prebaking the semiconductor substrate under a relatively high vacuum to form a rough surface on the semiconductor substrate; and (c) growing an insulator on the semiconductor substrate to form a rough insulator and increase the metal-insulator-semiconductor reliability when the insulator is applied.

Abstract: A structure of an acoustic diaphragm adapted to be used in a planar diaphragm speaker is provided. The structure includes a bottom carbon fiber layer and a top carbon fiber disposed on the bottom carbon fiber layer, wherein the fibers of the top carbon fiber layer and the fibers of the bottom fiber layer are parallel with each other.

Abstract: A heat exchanger for swimming pools, formed of an essentially cylindrical housing through which a first medium flows axially, while a second medium flows through a conduit that is installed in the housing and that is fashioned as a coil. The coil-shaped conduit is formed of a corrugated hose, and has separate connections for the second medium, or for the corrugated hose. The corrugated hose is connected at its end segments to separate connections for the second medium via a plug connection. The connections extend from the outside to the inside of the housing, passing through the housing.

Abstract: An anchoring element including a replacement heart valve for the purposes of intraluminal anchoring of the heart valve element to mammalian hearts, the anchoring element having a small enough initial volume prior to its placement that it can be brought to its point of use using a catheter through a blood vessel and can be expanded there to its functionally correct dimensions. The anchoring element is shaped differently from a cylindrical shape such that it is connected to the aorta at the point of use at least in areas in a form-locked manner. This facilitates an especially good seating of the anchoring element containing the replacement heart valve.

Abstract: A container for storing and dispensing carbonated beverages, including a housing having a sculpted base surface, a storage bladder, a dispensing valve, compression means within the housing to apply a continuous force to a piston between the compression means and the bladder, the piston having a shape complementary to the sculpted surface, guide means biasing the piston when pushed by the compression means against the bladder, whereby, as liquid is drawn from the bladder via the valve the liquid is exhausted by the piston mating with the first sculpted surface.

Abstract: An order for physical channel reassignment is to be selected in a hybrid time division multiple access/code division multiple access wireless communication system. A fragmentation gauge is determined for each of a set of the physical channels. For each physical channel, the fragmentation gauge represents a fragmentation over time slots of that physical channel with respect to other physical channels of a user service of that physical channel. An order is selected for the set of physical channels for reassignment from a lowest to a highest quality. The order is based on in part each individual channel's fragmentation gauge.

Abstract: Voiceband compression techniques are employed in order to enable an RF telecommunications base station to accommodate data signals of high speed voiceband modems and FAX machines. An Ultra-High Speed Codec supports voiceband modem and FAX transmissions up to 14.4 kb/s and operates using four 16-phase RF slots. Because these codecs transmit information over several RF slots which can be contiguous, the slots within RF communication channels are dynamically allocated. The Dynamic Time slot/Bandwidth Allocation feature detects and monitors the data transmission and forms a data channel from the necessary number of slots.

Abstract: An apparatus and method for data processing particularly useful in combining convolutions of the spreading code, scrambling code and channel response in order to construct a system transmission coefficient matrix, while maintaining the same circuit size and execution time relative to performing each convolution separately. One register for processing real channel response values and a second register for processing imaginary channel response values, are used for moving channel responses through the convolution. In place of multipliers, an optimized minimum number of adders connected in a pyramid configuration are used to perform the necessary multiplication of the codes, for simplicity of construction. By including the channel code transformation from binary representation to complex representation as part of the overall method, unnecessary adders are eliminated from the apparatus.