摘要:
A user (102) hears an audio program being broadcast and can record a sample of the audio. The sample is then conveyed to an analyzing means (106) to determine to which broadcast station the user is listening. The analyzing means monitors many broadcast channels. Thus, characteristics of the audio sample and samples taken from the broadcast channels can be compared to find a match. Broadcast information pertaining to the broadcast channel from which the match was found may then be reported back to the user, combined with an advertisement of a promotion, prize notification, discount offers, and other information specific for a certain radio station for example.
摘要:
The invention provides a system that implements an algorithm for integrated link adaptation and power control to achieve specified error rates and to improve an overall throughput for real-time applications in wireless packet networks. The system initially divides wireless terminals into groups according to their signal path gains. Afterwards, the system can periodically adapt transmissions (i.e., link adaptations) based on the required error rates, actual error statistics and average transmission power for each wireless terminal group. Furthermore, transmission power can be adjusted by an enhanced Kalman-filter method to ensure successful reception.
摘要:
An apparatus and method for neighbor-aware concurrent transmission media access control (MAC) protocol is provided, which determines whether a plurality of communication connections may be established concurrently in a wireless network, where each node in the network obtains the topology information of its multi-hop neighbors via a neighbor discover module. A cross-layer observation module integrates the physical and virtual carrier sensing, observes the address field of a control frame of a MAC layer in the wireless network, and compares the address field information of the control frame against the topology information obtained by the neighbor discover module to determine whether a plurality of connections may be established for concurrent transmission.
摘要:
A method of characterizing the overlap of two media segments is provided. In an instance where there is some amount of overlap of a file and a data sample, the file could be an excerpt of an original file and begin and end within the data sample. By matching identified features of the file with identified features of the data sample, a beginning and ending time of a portion of the file that is within the data sample can be determined. Using these times, a length of the file within the data sample can also be determined.
摘要:
The present invention is direct to the resource allocation method for MU-MIMO-OFDM system and the apparatus thereof. The MU-MIMO-OFDM system has a plurality of users and a plurality of sub-channels. The sub-channels are assigned to the users according to the capacity ratio constraints and a scheduling rule, and then the power of the user is determined according to the limit power of the MU-MIMO-OFDM system. Wherein the values of power of the sub-channels assigned to the user are the same, the scheduling rule may be Max-Min or Max Sum-Rate rule, and the allocation of the sub-channels may be user-oriented or sub-channel oriented.
摘要:
The invention provides a system that implements an algorithm for integrated link adaptation and power control to achieve specified error rates and to improve an overall throughput for real-time applications in wireless packet networks. The system initially divides wireless terminals into groups according to their signal path gains. Afterwards, the system can periodically adapt transmissions (i.e., link adaptations) based on the required error rates, actual error statistics and average transmission power for each wireless terminal group. Furthermore, transmission power can be adjusted by an enhanced Kalman-filter method to ensure successful reception.
摘要:
A method for performing an efficient handoff of a wireless endpoint to an access point in a wireless network environment includes measuring a number of stations utilizing the access point, selecting a broadcast count of the wireless endpoint according to the number of stations, selecting a retry count of the access point according to the number of stations, and performing the handoff of the wireless endpoint to the access point utilizing the selected broadcast count and retry count. The broadcast count corresponding to a number of probe request frames sent by the wireless endpoint to initiate the handoff of the wireless endpoint, and the retry count corresponding to a number of probe response frames sent by the access point to acknowledge receipt of the probe request frames.
摘要:
A method for inhibiting growth or differentiation of an epithelial cell comprising contacting at least an epithelial cell with an effective amount of an agent selected from the group consisting of a hedgehog antagonist and a patched antagonist.
摘要:
A cross-layer rate adaptation mechanism for wireless local area network (WLAN) can obtain the channel state by calculating the Eb/N0 ratio of ACK frame transmitted from the receiver side. The mechanism determines the transmission rate of the next frame by referring to a predefined reduced mode table. When receiving an ACK frame fails, the mechanism can automatically lower the transmitting rate of the next transmission. Therefore, the method can reduce the damage to the system when ACK frame failure happens.
摘要:
Anti-hedgehog antibodies directed at blocking the binding of hedgehog to its receptor patched-1, will impair lipid metabolism and storage. This invention presents methods for the treatment of a variety of lipid metabolism and lipid storage disorders, aberrant apolipoprotein expression, atherosclerosis and other lipid associated disorders using lipid modulators such as hedgehog antagonists or hedgehog agonists.