Abstract: An apparatus for enabling operation of a LDC network within a DECT system having a modified protocol, comprising an A-field with an identity of a FP shared by both the DECT system and the LDC network, B-fields with unique sync patterns for the DECT system and the LDC network, respectively; and separate dummy bearers for transmission by the FP for the DECT system and the LDC network, respectively, and a method for using the same.

Abstract: A method and adaptive processor for estimating a reference signal, comprising receiving or determining a number of groups and respective group sizes, each group associated with a range of delay values of the reference signal, determining a multiplicity of coefficients, each coefficient associated with a specific delay of the reference signal, determining a multiplicity of weights, each weight associated with one of the groups, multiplying each sample of the reference signal having a delay by a corresponding coefficient to obtain a first product, and summing a multiplicity of first products associated with a group into a group sum signal sample, and multiplying each group sum by a weight associated with the group to obtain a second product, and summing all second products to obtain an estimated signal value.

Abstract: A method and apparatus for filtering a reference signal by a series of taps having coefficients, comprising dividing the taps into at least one layer of a plurality of groups, each group comprising a plurality of taps, as a first layer, forming a plurality of coefficients arranged in at least one group, as at least one subsequent layer and forwarding multiply-accumulate results of each group in each layer sequentially to the at least one group in the at least one subsequent layer to generate an output signal, and adjusting the coefficients based on an error signal formed as a difference between the output signal and a received input signal related to the reference signal and an interim error signal as a difference between the input signal and a summation of the multiply-accumulate results of at least one layer.

Abstract: An apparatus for enabling operation of a LDC network within a DECT system having a modified protocol, comprising an A-field with an identity of a FP shared by both the DECT system and the LDC network, B-fields with unique sync patterns for the DECT system and the LDC network, respectively; and separate dummy bearers for transmission by the FP for the DECT system and the LDC network, respectively, and a method for using the same.

Abstract: A method of maintaining signal convergence of a transmitter and a receiver of an adaptive differential pulse code modulated (ADPCM) communication system during discontinuous transmission, by generating synchronized comfort noise frame in the transmitter and in the receiver during quiet periods and mutually updating the receiver's decoder and encoder on their states.

Abstract: A method of error protection for wireless communication of packets of sampled digitized audio data according to a selected communication protocol, comprising: identifying the least significant bits of each sample of audio data encoded in the packets based on the communication protocol used; selectively replacing one or more of the least significant bits with values that enable performing error correction on the rest of the data encoded in the packet; transmitting the altered packet from a transmitting party to a receiving party; using the replaced bits to detect or correct errors in the transmitted packet; wherein said communication protocol uses an ADPCM encoding scheme.