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Bachrach
Ran Bachrach, Binyamins IL
| Patent application number | Description | Published |
|---|---|---|
| 20100305865 | ESTIMATING VELOCITIES WITH UNCERTAINTY - A method and apparatus for estimating velocity in a subsurface region. Seismic data for a subsurface region may be received. One or more attributes for the seismic data may be calculated. A posterior distribution may be generated. The posterior distribution may represent one or more probabilities of one or more velocities for the attributes. A velocity with uncertainty may be determined for the subsurface region based on the posterior distribution. A pore pressure with uncertainty may be determined based on the velocity with uncertainty. | 12-02-2010 |
Yoram Bachrach, Cambridge GB
| Patent application number | Description | Published |
|---|---|---|
| 20110231405 | Data Structures for Collaborative Filtering Systems - Data structures for collaborative filtering systems are described. In an embodiment sketches which extremely concisely represent a list of items that a user has rated are created and stored for use by a collaborative filtering system to recommend items. For example, the sketches are created by using several versions of a cryptographic hash function to permute the item list and store a minimal value from each permutation in the sketch together with a user rating. In examples the sketches are used to compute estimates of similarity measures between pairs of users such as rank correlations including Spearman's Rho and Kendall's Tau. For example, the similarity measures are used by a collaborative filtering system to accurately and efficiently recommend items to users. For example the sketches are so concise that massive amounts of data can be taken into account in order to give high quality recommendations in a practical manner. | 09-22-2011 |
Yuval Bachrach, Haife IL
| Patent application number | Description | Published |
|---|---|---|
| 20110038356 | VBR interference mitigation in an mmwave network - Methods, apparatuses, and systems to generate accurate interference signatures are disclosed. An apparatus embodiment may be a transmitting device that transmits VBR data. The transmitting device may be allotted a number of sub-slots in which the transmitting device uses to transmit the VBR data. However, the communicating device may rarely use all of the allotted slots and routinely use only a few of the sub-slots. A receiving device that may be affected by transmissions from the transmitting device, such as a receiver in a neighboring network, may monitor the channel to develop an interference pattern or interference signature. To enable the receiving device to develop an accurate interference signature, the transmitting device may transmit data over each of the allotted sub-slots within a predetermined period. | 02-17-2011 |
Yuval Bachrach, Haifa IL
| Patent application number | Description | Published |
|---|---|---|
| 20090232103 | Apparatus and method adapted for directional bandwidth reservation with fixed announcement slot in wireless networks - An embodiment of the present invention provides an apparatus, comprising a transceiver operable in a wireless personal area network, wherein the transceiver is configured to communicate with a coordinator and at least one receiver and wherein the transceiver and the coordinator use a directional reservation of free channel time blocks using contention-based slots, by selecting uniformly at random contention slots by the transceiver and transmitting a bandwidth reservation request message specifying the requested reservation period using directional transmission pointed towards the coordinator. | 09-17-2009 |
| 20090232104 | Techniques enabling dynamic bandwidth reservation in a wireless personal area network - An embodiment of the present invention provides a method, comprising dynamically reserving free channel time blocks for directional transmissions in a wireless personal area network (WPAN) by a transceiver communicating with a Coordinator and the Coordinator allocating a part or a whole of unreserved channel time blocks for a directional link during a handshake with the transceiver. | 09-17-2009 |
Yuval Bachrach, Ramat-Eshkol IL
| Patent application number | Description | Published |
|---|---|---|
| 20090232105 | MECHANISM TO AVOID INTERFERENCE AND IMPROVE COMMUNICATION LATENCY IN MMWAVE WPANS - Briefly, a mechanism to avoid interference and improve channel efficiency in mmWave Wireless Personal Area Networks (WPANs) is disclosed. In particular, interference information during various time periods is tracked and used to optimize transmission scheduling. Further, a mechanism is provided to improve communication latency by distributing responsibility for coordination of slots amongst multiple transmitting devices. | 09-17-2009 |