Abstract: A receiver apparatus includes a first frequency response estimator configured to calculate a first frequency response estimation value using a reference signal, a duration extractor configured to determine an estimation duration by extracting at least one duration from among a plurality of duration candidates into which a predetermined maximum delay time is divided, and a second frequency response estimator configured to calculate a second frequency response estimation value as a frequency response estimation value for demodulation using the first frequency response and the estimation duration. The receiver apparatus thus performs high-precision channel estimation even if a variety of PDPs occur with time.

Abstract: A method and apparatus for automatically establishing a wired protected setup between an enrollee requesting registration and a registrar granting registration are provided. The method includes: determining whether a power line communication (PLC) between the enrollee and the registrar is possible; and if it is determined that the PLC with the registrar is possible, receiving a personal identification number (PIN) from the registrar through the power line and transmitting an acknowledgement (ACK) message to the registrar through the power line as a response to the received PIN.

Abstract: A facility for blocking telephone calls is described. The facility is implemented by a telecommunications system that manages assigned and unassigned telephone numbers. The facility determines that a call originator has made two telephone calls to two different unassigned telephone numbers. The facility adds the call originator to a blacklist for a default time period. If the call originator calls any managed telephone number during the default time period, the facility renews the default time period. After the default time period expires, if the call originator makes additional telephone calls to other unassigned telephone numbers, the facility adds the call originator to the blacklist for a time period that is increased from the default time period. The facility increases the time period with each additional call to an unassigned telephone number. Accordingly, the time period is a function of the number of unassigned telephone numbers called by the call originator.

Abstract: A network scanner, communication protocols, and client and server programs and are provided which provide an improved way to transmit legally binding documents, obviating the need for outmoded, legacy fax transmissions. Using the network scanner, a document may be scanned and transferred directly into any shared folder inbox residing on any computer attached to the Internet. Enhanced server systems and network communications and messaging protocols are provided that are more practical to use than email for sending documents such as executed legal documents or other documents requiring robust integrity and authenticatability. Similarly, the inventive network scanner, server systems and communication protocols provide improved ways to perform large file transfers and to manage bandwidth to minimize problems associated with uploading/downloading large files as attachments to/from email servers and for enabling user control over VoIP quality during file transmission sessions.

Abstract: A novel serial receiver for a wireless communication system is provided. The communication system comprises: a receiver for receiving a signal y having data parameters; a control processor; the control processor for receiving the signal y and the data parameters; at least two fingers, the control processor for determining which of the data parameters are sent to respective fingers, wherein the at least two fingers have at least a search finger and a tracking finger; and wherein the tracking finger comprises a correlator and a Coded Signal Processing Engine (CSPE), the CSPE for interference cancellation in the reception of the signal y. In addition, numerous other embodiments of the serial receiver are provided along with methods for using the serial receiver.

Abstract: A transformer circuit arrangement has a first transformer (201) with a first lower limit frequency (fu1) and a first upper limit frequency (fo1), and a second transformer (202) with a second lower limit frequency (fu2) and a second upper limit frequency (fo2), whereby the first lower limit frequency (fu1) is smaller than the second upper limit frequency (fu2), and the second upper limit frequency (fo2) is greater than the first upper limit frequency (fo1), the second lower limit frequency (fu2) is preferably not greater or smaller than the first upper limit frequency (fo1) by a factor of 10, at least one input (103, 104) of the first transformer is electrically connected to an input (209, 210) of the second transformer, and at least one output (205, 206) of the first transformer is connected to an output (107, 108) of the second transformer, and the transformer circuit arrangement has a band pass behaviour with a lower overall limit frequency (fuges) and an upper overall limit frequency (foges), whereby the l

Abstract: A current sense circuit for sensing a current in a subscriber loop comprising a transformer having a first and second winding coupled for sensing a differential current in a loop, a sense winding for producing a sense current in response to a magnetic flux induced in the transformer due to the differential current, an amplifier circuit for receiving the sense current and wherein the sense current is indicative of a signal on the loop, and the amplifier being configured such that a transformer introduces a low insertion loss at a frequency of operation of the loop.

Abstract: In a packet radio system (e.g. a GPRS), a network (BSS) has two different alternatives for allocating a radio resource to a mobile station (MS). In a first allocation alternative the radio resource is allocated using an uplink counter block identifier (USF) transmitted with downlink blocks. In a second allocation alternative the radio resource is allocated in a separate signalling message. A corresponding downlink block then also has an uplink counter block identifier (USF) which can acquire only a limited number of possible values. If all identifiers (USF) are allocated to different mobile stations, allocation alternative 2 cannot be used. In the invention the network leaves at least one identifier (USF) unallocated to any mobile station.

Abstract: A technique for de-assigning signals from the fingers of a rake receiver is disclosed. In general, embodiments of the present invention place more stringent standards on signals that have been newly assigned to a finger and may be spurious and place less stringent standards on mature signals that have proved themselves over time but may be experiencing only a temporary signal quality shortfall. Illustrative embodiments of the present invention accomplish this goal using one or more of four techniques. The first technique de-assigns a signal from a finger when a measure of signal quality of the signal crosses a threshold, while changing the threshold as a function of the duration that the signal has been assigned to the finger.

Abstract: A searcher receiver (114) includes a sample buffer (202) which stores signal samples loaded using a real time clock. A real time linear sequence generator (RT LSG) (206) stores an initial state and is clocked using the real time clock. The contents of the RT LSG are loaded into a non-real time linear sequence generator (NRT LSG) (208) when sample processing begins Samples are correlated using a non-real time clock to allow signal processing to be uncoupled from the chip rate. The analog front end (108) may be powered down or tuned to another frequency during non-real time processing.