International Business Machines Corporation

Daniel Mauduit

Claude R Galand

Frederic J Bauchot

Gerald Lebizay

Victor Spagnol

Jean L Calvignac

Didier F Giroir

Jean-Marie L Munier

Jean E Menez

Andre Pauporte

Vincent Tassy

Maurice Cukier

Albert Harari

Daniel J Esteban

Gerard Orengo

Benoit Sirot

Eric Saint-Georges

Michel Y Porta

Eric Jean Francois Menguy

Aspects of the invention are directed to a method and system for end-to-end proof of display. A method for according to an embodiment includes: generating a unique identifier (UID) for a triplet including an item of digital content, an identity of a playlist that includes the item of digital content, and an identity of a player on which the item of digital content is to be rendered; generating a visual identifier based on the UID and a timecode; rendering the item of digital content on a display screen; overlaying the visual identifier on the rendered item of digital content on the display screen; capturing the visual identifier on the display screen; and extracting the UID and timecode from the captured visual identifier. A match test is performed using the extracted UID to populate a match list, which is reported to a content manager to provide end-to-end proof of display.

End-to end proof of display

In an electronic spreadsheet, an example of a solution provided here comprises defining boolean variables in a table, referencing the boolean variables in one or more cells, and determining the content of the cells. Such a solution may involve managing the boolean variables (also referred to as options) by creating a new option, renaming an existing option, or changing the status of an existing option, for example.

Method and system in an electronic spreadsheet for managing and handling user-defined options

An example of a solution provided here involves identifying two series of cells to be compared in a multi dimensional spreadsheet, performing intermediary tests, and deriving the result of the comparison: the first series may be included in the second series, include the second series, be the same as the second series, overlap the second series, or be disjoined from the second series, for example.

Method and system in an electronic spreadsheet for comparing series of cells

In a packet switched communications system an incoming real-time packet is imbedded after the next block of data of the non-real-time packet being transmitted. This object is accomplished by transmitting each packet along with at least a 1-byte trailer which is used to indicate the packet type, whether the current block of non real time data is preempted or whether the current block of non real time data is resumed.

Method and apparatus for transmission of high priority traffic on low

A high performance data packet buffering method and a programmable data communication adapter for high speed packet transmission networks are disclosed. The line adapter includes programmable processing means, for receiving and transmitting data packets of fixed or variable length. This system is characterized in that it comprises

Programmable high performance data communication adapter for high speed

Digital filter used in a sigma-delta decoder wherein each input sample is involved in the computation of three consecutive pulse coded modulation (PCM) output samples. During one sigma-delta sampling period, the filter performs three parallel operations by multiplexing one adder running three times faster than the sigma-delta clock for loading one of three accumulators. As the analog-to-digital converter must be kept in phase with remote modem transmit clock, the PCM sampling clock is controlled by the phase tracking performed by adding or subtracting one period of the crystal oscillator from time to time to the PCM sampling clock period. Rotating the order in which the accumulators are loaded by the adder each PCM sampling time enables having zero as the last coefficient value to add to the accumulator, the contents of which is used as PCM output samples. Thus, each PCM sample value is available in the corresponding accumulator one sigma-delta clock period before the last computation. In case of a correction which shortens or lengthens the PCM sampling period, this correction does not change the PCM sample value to be output since the last computation which is either cancelled or repeated, consists in adding zero to the previous accumulator contents.

Digital filter for a modem sigma-delta analog-to-digital converter

A voice signal is transmitted digitally at reduced bit rate by use of data compression. The original frequency components of a telephone band width of the voice signal sampled at 8 KHz and quantized with 12 bits are transformed into three parameters: SIGNAL data representing adaptive quantization for lower frequency (300-800 Hz) sub-bands; COEF data representing pre-emphasized parcor type coefficients for the higher frequency (800-3000 Hz) band; and, ENERGY data representing higher frequency short term energy level. The three parameters are multiplexed for transmission in binary-code form, thereby representing a recoding of the original binary-coded voice signals.

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Nice, France

Daniel Mauduit