44 results about "Composite Sequence" patented technology

A system and method for generating a digital certificate is provided wherein a new digital record is received and is assigned a sequence value. A first composite digital value is generated by applying a first deterministic function to the digital records stored in a repository. The sequence value and first composite digital value are included in a first certificate. After the digital record is added to the repository, a second composite digital value is generated by applying a second deterministic function to the digital records in the repository. This second composite digital value, and a composite sequence value, are published. An interval digital value which is based upon the first and second composite digital values, and the sequence value, are included in a second certificate which thus verifies the authenticity and sequence value of the digital record.

The signals within a packet of transient signals are generated at timings corresponding to a binary pulse sequence having an autocorrelation function which, for all non-zero shifts, has a value which is substantially smaller than the maximum value at zero shift. The times of occurrence of the signals within a packet are such that the minimum gap between adjacent pulses in the corresponding binary pulse sequence exceeds a predetermined value, whereby the autocorrelation function of the binary pulse sequence exhibits a zero value for consecutive relative shifts which do not exceed a predetermined limit. Each transient signal may be a randomly-selected waveform with predetermined characteristics. At least one packet may be based on a composite sequence including a first binary pulse sequence interleaved with a second binary pulse sequence which is a time-reversed replica of the first binary pulse sequence, at least a substantial number of the transient signals corresponding to each binary pulse sequence being distinguishable from those corresponding to the other binary pulse sequence.

Methods and compositions related to the selective, specific disruption of multiple ligand-receptor signaling interactions, such as ligand-receptor interactions implicated in disease, are disclosed. These interactions may involve multiple cytokines in a single receptor family or multiple ligand receptor interactions from at least two distinct ligand-receptor families. The compositions may comprise polypeptides having composite sequences that comprise sequence fragments of two or more ligand binding sites. The methods and compositions may involve sequence fragments of two or more ligand binding sites that are arranged to conserve the secondary structure of each of the ligands from which the sequence fragments were taken.

A receiver architecture is disclosed for use in Time-Division Multiple Access (TDMA) and related digital radio applications which combines the principal benefits of the conventional hard-limiting and linear receiver architectures to support switched-antenna diversity and multipath equalisation without the need for receiver gain control. A further feature of the receiver architecture is that minimises the dynamic range needed by the digital signal processing stages thereby reducing complexity, power consumption and cost compared to known arrangements. The (TDMA) radio frequency signal is separated into two components by the analogue section of the receiver: one component characterising the signal's phase, either absolute or differential, the second component characterising the signal's instantaneous magnitude. The (constant-envelope) phase component is digitised by an analogue-to-digital converter (ADC) to form a sequence of phase samples. In a parallel path, the magnitude component is digitised by a second, synchronised ADC, digitally processed to obtain a sequence of coefficients characterising the normalised envelope variations and this is then combined with corresponding (in time) samples of the phase sequence to form a single, composite sequence characterising both the phase and amplitude variations of the received radio frequency signal. This composite sequence is then processed by a digital demodulator / equaliser to recover the transmitted data.

The invention relates to an asymmetric short circuit current DC component decaying time constant acquisition method. The method comprises the following steps: 1) according to the type of asymmetric short circuit fault happening to a power system, a 120 composite sequence network formed by a 1 sequence network, a 2 sequence network and a 0 sequence network is built correspondingly; 2) according to the connection relationship of the 120 composite sequence network, the decaying time constant of a DC component in the short circuit current is calculated. Compared with the prior art, the method has the advantages of simple modeling, high calculation precision, wide applicability and the like.

The invention relates to an FPGA-based composite sequence FWT fast correlation detection method, which is based on the FPGA composed of a data pre-processing and control module, an FWT module and a maximum value selection module; an FWT module employs a radix-4 butterfly decomposition operation structure, and realizes the fast correlation detection of 2<n>-1(n=3-10) length different type composite sequences under the condition of unknown sequence family numbers and sequence phase positions. The method has the characteristics of fast sequence correlation operation, storage resource conservation and great versatility.