Abstract:
A method and system for demapping a hierarchical signal is disclosed. The method includes receiving a hierarchical signal comprising first and second encoded, modulated signals. A conditional probability relating to the structure of the second encoded, modulated signal is determined. The hierarchical signal is demodulated using the conditional probability to generate a first encoded data stream. The first encoded data stream is decoded to recover information bits.
Abstract:
Quinoid thiophene organic photoelectric material with formula (1), method for its preparation and application thereof are provided, wherein R1, R2, R3, R4, R5 and R6, which are identical or different, represent H, C1˜C30 alkyl or alkoxy, m and n, which are identical or different, represent integers between 1 and 20. The quinoid thiophene organic photoelectric material with formula (1) has wide spectral response, good thermal stability and environmental stability.
Abstract:
Disclosed are organic semiconductor material having the general formula (I), Wherein R1, R2, R3, R4, R5, R6 and R7 are C1-C20 alkyl, n is an integer greater than 1 and less than or equal to 100. The preparation methods and application of said organic semiconductor materials are also disclosed. Said organic semiconductor materials possess improved stability and photoelectric conversion efficiency.
Abstract:
In a voltage converter, a mode configuration is selected in response to a mode control signal using a switch matrix having two or more mode configurations. Each mode configuration corresponds to one of two or more output signal voltages. The output signal is compared with a reference signal to produce a direction comparison signal. The direction comparison signal is used to produce the mode control signal.
Abstract:
Embodiments of systems and methods for efficient broadcasting via random linear packet combining are described. A method for random linear packet combining includes receiving a plurality of data packets from a data source. Additionally, the method may include dividing the plurality of data packets into a plurality of data blocks, and multiplying bits associated with the plurality of data blocks by a set of coefficients to generate a plurality of product values. The method may also include generating an encoded data packet having a plurality of encoded data blocks, wherein generating the encoded data packet comprises linearly combining the plurality of product values for respective data blocks of each of the plurality of data packets into corresponding encoded data blocks of the encoded data packet. Because each encoded data packet includes information about a complete set of data packets, rather than just a subset, less broadcast redundancy may be required.
Abstract:
Systems and methods which provide data communication content delivery through a hybrid network implementation are disclosed. A hybrid network configuration may utilize a broadcast communication technique to deliver large amounts of data communication content to one or more mobile communication device via uni-directional network links and a uni-cast communication technique via bi-directional network links with the one or more mobile communication device to facilitate delivery and utilization of the data communication content. Data content delivery loss recovery techniques implemented according to embodiments of the invention utilize network links of the hybrid network other than or in addition to the uni-directional network links to implement loss recovery techniques such as a hybrid repeat technique, a hybrid retransmission technique, hybrid statistical feedback technique, and/or combinations thereof.
Abstract:
A heterocyclic quinoid thiophene organic photoelectric material, which comprises a compound represented by formula (1), in which R1, R2, R5 and R6, which may be identical or different, are H or C1-C20 alkyl or alkoxyl; R3 and R4, which may be identical or different, are C1-C20 alkyl or alkoxyl; a and b, which may be identical or different, are integer of 1-12; X is Si or C. A preparation method of said heterocyclic quinoid thiophene organic photoelectric material and the use thereof are also disclosed.
Abstract:
Quinoid thiophene organic photoelectric material with formula (1), method for its preparation and application thereof are provided, wherein R1, R2, R3, R4, R5 and R6, which are identical or different, represent H, C1˜C30 alkyl or alkoxy, m and n, which are identical or different, represent integers between 1 and 20. The quinoid thiophene organic photoelectric material with formula (1) has wide spectral response, good thermal stability and environmental stability.
Abstract:
The invention relates to novel heterocyclic compounds of the formula in which all of the variables are as defined in the specification, in free form or in salt form, to their preparation, to their medical use and to medicaments comprising them.
Abstract:
In one embodiment, differential signaling and ground contacts are located in a rectilinear array of rows and columns with ground contacts spaced apart by three times the pitch distance between adjacent rows or columns and signaling contacts are located immediately adjacent the ground contacts. In particular, the two contacts of each differential pair are located one pitch distance apart from each other and one contact of each differential pair of contacts is located one pitch distance from a ground contact and the other contact of the differential pair is located approximately sqrt(2)*pitch distance from the same ground contact. In a second embodiment, differential signaling and ground contacts are located in a hexagonal array with ground contacts located three times the pitch distance between adjacent contacts and signaling contacts located immediately adjacent the ground contacts. In particular, the two contacts of each differential pair are located one pitch distance apart from each other and both contacts of each differential pair of contacts are located one pitch distance from a ground contact.