Abstract: In general, the subject matter described in this specification can be embodied in methods, systems, and program products for adapting data rate in a communication system. A receiving device receives a data transmission at an initial data rate. The device determines, based on an error rate of the data transmission at the initial data rate, that a first criterion is satisfied for requesting an increase in the data transmission. The device requests that a transmitting device increase the data transmission from the initial data rate to the first subsequent data rate. The device determines, based on an error rate of the data transmission at the first subsequent data rate, whether a second criterion is satisfied for maintaining the first subsequent data rate. The device maintains, if the second criterion is determined to be satisfied, a state of the device for receiving the data transmission at the first subsequent data rate.

Abstract: A system for and method of generating and visualizing one or more sharing event cascade structures associated with one or more content sharing events that occur across a network may include generating a plurality of sharing event nodes in the one or more sharing event cascade structures based on data associated with at least one of a system log and a database, wherein each sharing event cascade structure graphically represents a history of one or more content items being shared among a plurality of users of the network, and presenting, on a display device, a content sharing visualization diagram that illustrates the one or more sharing event cascade structures and enables a user to analyze sharing patterns associated with the plurality of users of the network.

Abstract: In general, the subject matter described in this specification can be embodied in methods, systems, and program products for adapting data rate in a communication system. A receiving device receives a data transmission at an initial data rate. The device determines, based on an error rate of the data transmission at the initial data rate, that a first criterion is satisfied for requesting an increase in the data transmission. The device requests that a transmitting device increase the data transmission from the initial data rate to the first subsequent data rate. The device determines, based on an error rate of the data transmission at the first subsequent data rate, whether a second criterion is satisfied for maintaining the first subsequent data rate. The device maintains, if the second criterion is determined to be satisfied, a state of the device for receiving the data transmission at the first subsequent data rate.

Abstract: In general, the subject matter described in this specification can be embodied in methods, systems, and program products for adapting data rate in a communication system. A receiving device receives a data transmission at an initial data rate. The device determines, based on an error rate of the data transmission at the initial data rate, that a first criterion is satisfied for requesting an increase in the data transmission. The device requests that a transmitting device increase the data transmission from the initial data rate to the first subsequent data rate. The device determines, based on an error rate of the data transmission at the first subsequent data rate, whether a second criterion is satisfied for maintaining the first subsequent data rate. The device maintains, if the second criterion is determined to be satisfied, a state of the device for receiving the data transmission at the first subsequent data rate.

Abstract: Systems, methods, and devices for reducing interference with digital television transmissions occurring over a bandwidth are disclosed. The digital television signal is correlated to a reference digital television field sync signal. A non-coherent correlation power measurement is determined based on the correlation of the received digital television signal to the reference digital television field sync signal. A plurality of maximum non-coherent correlation power measurements are determined over multiple field times. An energy estimate for the digital television transmission is determined based on the maximum non-coherent correlation power measurements. A transmit mask filter is generated based on the energy estimate. The transmit mask is applied to transmissions to reduce interference with detected digital television transmissions.

Abstract: Systems, methods, and devices for reducing interference with digital television transmissions occurring over a bandwidth are disclosed. The digital television signal is correlated to a reference digital television field sync signal. A non-coherent correlation power measurement is determined based on the correlation of the received digital television signal to the reference digital television field sync signal. A plurality of maximum non-coherent correlation power measurements are determined over multiple field times. An energy estimate for the digital television transmission is determined based on the maximum non-coherent correlation power measurements. A transmit mask filter is generated based on the energy estimate. The transmit mask is applied to transmissions to reduce interference with detected digital television transmissions.

Abstract: A system for and method of generating and visualizing one or more sharing event cascade structures associated with one or more content sharing events that occur across a network may include generating a plurality of sharing event nodes in the one or more sharing event cascade structures based on data associated with at least one of a system log and a database, wherein each sharing event cascade structure graphically represents a history of one or more content items being shared among a plurality of users of the network, and presenting, on a display device, a content sharing visualization diagram that illustrates the one or more sharing event cascade structures and enables a user to analyze sharing patterns associated with the plurality of users of the network.

Abstract: In general, the subject matter described in this specification can be embodied in methods, systems, and program products for adapting data rate in a communication system. A receiving device receives a data transmission at an initial data rate. The device determines, based on an error rate of the data transmission at the initial data rate, that a first criterion is satisfied for requesting an increase in the data transmission. The device requests that a transmitting device increase the data transmission from the initial data rate to the first subsequent data rate. The device determines, based on an error rate of the data transmission at the first subsequent data rate, whether a second criterion is satisfied for maintaining the first subsequent data rate. The device maintains, if the second criterion is determined to be satisfied, a state of the device for receiving the data transmission at the first subsequent data rate.

Abstract: Disclosed are methods of printing documents comprising a plurality of pages sourced from a computer network. The methods provide a zoom property attribute to scale the document (FIG. 10). In one implementation a preview window (1702,1703) is displayed which shows the pages in the document scaled based on the zoom property attribute. A user selection (1701), within the preview window, is then determined for the pages of the scaled document. A subset (1804 cf. 1802) of the pages according to the user selection are then printed. In another implementation it is determined whether an amount of content (1008) on a last page of a scaled multi-page document (1002), which is scaled based on the zoom property attribute, is less than a predetermined amount. When the amount of content (1008) is less than the predetermined amount, the scaled multi-page document is further scaled down to fit to a nearest whole page. The further scaled multi-page document (1010) may then be printed.

Abstract: An apparatus and method for encoding low-density parity check codes. Together with a repeater, an interleaver and an accumulator, the apparatus comprises a precoder, thus forming accumulate-repeat-accumulate (ARA codes). Protographs representing various types of ARA codes, including AR3A, AR4A and ARJA codes, are described. High performance is obtained when compared to the performance of current repeat-accumulate (RA) or irregular-repeat-accumulate (IRA) codes.

Abstract: Methods and apparatus to encode message input symbols in accordance with an accumulate-repeat-accumulate code with repetition three or four are disclosed. Block circulant matrices are used. A first method and apparatus make use of the block-circulant structure of the parity check matrix. A second method and apparatus use block-circulant generator matrices.