Abstract: One or more computing devices carry out a method for generating markup language to represent a calculation relationship among facts, wherein each fact is described by metadata whose characteristics are defined in an extensible business reporting language (XBRL) taxonomy document. In various implementations, the method includes: searching the document for a data item that contains an arithmetic formula, determining which other data items of the document are referenced by the arithmetic formula, determining which of the plurality of facts correspond to the referenced data items, based on the arithmetic formula, generating markup language that represents an arithmetic relationship among the facts corresponding to the referenced data items, and modifying the XBRL taxonomy document with the generated markup language.

Abstract: One or more computing devices carry out a method for generating markup language to represent a calculation relationship among facts, wherein each fact is described by metadata whose characteristics are defined in an extensible business reporting language (XBRL) taxonomy document. In various implementations, the method includes: searching the document for a data item that contains an arithmetic formula, determining which other data items of the document are referenced by the arithmetic formula, determining which of the plurality of facts correspond to the referenced data items, based on the arithmetic formula, generating markup language that represents an arithmetic relationship among the facts corresponding to the referenced data items, and modifying the XBRL taxonomy document with the generated markup language.

Abstract: A computing device parses markup language of an instance document (e.g., an XBRL instance document) that contains a plurality of facts, in which each fact comprises a value that is tagged according to at least one concept of a plurality of concepts. A taxonomy document contains markup language that defines one or more relationships among the plurality of concepts. Based on the parsing of the markup language of the instance document, the computing device determines that at least two of the plurality of facts are in a calculation relationship with one another. The computing device then generates markup language representing the calculation relationships (e.g., XLink) and modifies the taxonomy document (e.g., modifies or extends a linkbase contained in the taxonomy document) with the generated markup language.

Abstract: A computing device parses markup language of an instance document (e.g., an XBRL instance document) that contains a plurality of facts, in which each fact comprises a value that is tagged according to at least one concept of a plurality of concepts. A taxonomy document contains markup language that defines one or more relationships among the plurality of concepts. Based on the parsing of the markup language of the instance document, the computing device determines that at least two of the plurality of facts are in a calculation relationship with one another. The computing device then generates markup language representing the calculation relationships (e.g., XLink) and modifies the taxonomy document (e.g., modifies or extends a linkbase contained in the taxonomy document) with the generated markup language.

Abstract: A shuttlecock launching apparatus which comprises a storage for shuttlecocks, first and second launching wheels, a transfer assembly for transferring a single shuttlecock from the storage to the launching wheels, the transfer assembly being controlled by a cam wheel and cam follower which causes and guides the horizontal movement of the transfer assembly.

Abstract: A shuttlecock launching apparatus which comprises a storage for shuttlecocks, first and second launching wheels, a transfer assembly for transferring a single shuttlecock from the storage to the launching wheels, the transfer assembly being controlled by a cam wheel and cam follower which causes and guides the horizontal movement of the transfer assembly.

Abstract: A system for powering up an electronic circuit with telephone line power such that the electronic circuit does not enter a lockup state. The system includes a voltage detector that measures the voltage across the telephone line and a switch coupled with the voltage detector. The voltage detector generates a Reset signal when the measured voltage exceeds a selected voltage level, and the switch applies power to the electronic circuit in response to the generated Reset signal.

Abstract: An ADSL front end is implemented with an adaptive AM interference canceller to cancel out either a carrier signal of an interfering AM radio signal, or a carrier signal and its sidebands of an interfering AM radio signal, from a received ADSL signal. By canceling an interfering AM radio signal rather than simply filtering out the relevant interfered with frequency band, the interfered with frequency band remains useable for ADSL transmission. In one embodiment, a reference AM radio receiver is either fixedly or adaptively tuned to the carrier frequency of an interfering AM radio station, and the received signal in the frequency band surrounding that carrier frequency is digitized and provided to an adaptive interference canceller. The adaptive interference canceller adaptively adjusts a time delay and phase of the generated AM interference signal to optimize cancellation at a hybrid of the same AM radio signal received as interference over a subscriber line.

Abstract: An exemplary method for the automated, or semi-automated, conversion or reconciliation of metadata from one form into another, includes one or more of: a) identifying data elements and their associated metadata in electronic file(s); b) transforming this metadata into an intermediate metadata format for later use in production of new metadata structure(s); c) developing bodies of re-usable rules for the transformation or mapping of data sets encoded using one set of metadata into another data set encoded using a different set of metadata; d) developing bodies of re-usable metadata sets and rules for the transformation or mapping of metadata into an intermediate metadata structure; e) developing of bodies of re-usable metadata sets and rules for the transformation or mapping of metadata of an intermediate metadata structure into new metadata structure(s); and f) an efficient method for capture of conversion and validation rules.

Abstract: A method and apparatus for a telephone line interface or data access arrangement (DAA) which includes a shunt regulator in series with a line modulator. A sense resistor is placed in series between the shunt regulator and the line modulator to provide a measurement of the amount of current distortion in the DAA. The line modulator contains a Darlington pair which reduces the amount of current drawn by the line modulator, allowing the sense resistor to sense a majority of the system current. The voltage across the sense resistor is fed back to the line modulator. The line modulator is capable of adjusting the AC modulation and the DC termination presented to the telephone line. The method includes drawing power from the telephone line using a shunt regulator, modulating the telephone line in series with the shunt regulator, sensing a level of distortion in the DAA, and feeding the sensed level of distortion to the line modulator.

Abstract: A method and apparatus for a data access arrangement (DAA) which includes a line modulator containing capacitive elements to increase system stability. The invention provides improved stability during system startup and normal system operation. The line modulator is capable of adjusting the AC modulation and the DC termination presented to the telephone line. Capacitive elements are added to the modulator to provide enhanced system stability. The method includes drawing power from the telephone line, modulating the telephone line, sensing a level of distortion through the line modulator, feeding the sensed level of distortion to the line modulator, and using capacitive circuits to provide additional system stability.

Abstract: The digital-to-analog converter includes an output line, and a plurality of converters receiving control signals representative of digital data. Each converter selectively connects the output line to a voltage in response to a respective one of the control signals. Optionally, the digital-to-analog converter further includes a reset circuit for resetting the voltage on the output line to a reset voltage between portions of the analog waveform representing a digital data symbol.

Abstract: A digital device for controlling the DC line current on a telephone line which includes a digital device that utilizes a digital filter for setting the DC line current. By controlling the DC line current digitally, software can be used to set the DC line current in accordance with predefined characteristics. Predefined characteristics can be set to accommodate varying country specifications instead of using switches to control resistors and capacitors. In addition, changes in a country's requirements can be accomplished through software, instead of changing components or redesigning a circuit board. The device also incorporates a method for maintaining DC current level during changes in digital filter characteristics. The use of software results in increased flexibility by allowing an infinite number of settings via software or software updates, and allowing changes to be made quickly and easily throughout the world.

Abstract: A method and apparatus for a telephone line interface or data access arrangement (DAA) which includes a shunt regulator in series with a line modulator. A first sense resistor is placed in series between the shunt regulator and the line modulator to provide a measurement of the amount of current distortion in the DAA shunt regulator. The voltage across the first sense resistor is fed back to the line modulator. A second sense resistor is inserted into the line modulator circuitry to provide a measurement of the system current distortion that is outside of the path containing the sense resistor used to monitor the current distortion in the DAA shunt regulator. The voltage across the second sense resistor is also fed back to the line modulator. The line modulator is capable of adjusting the AC modulation and the DC termination presented to the telephone line.

Abstract: A method and apparatus for transmitting and receiving digital data in a noisy environment. Digital data is transmitted with a degree of noise immunity by generating and transmitting a reference signal along with the transmitted digital data signal. The reference signal has a voltage level between a logic level low and a logic level high of the digital data signal. The reference signal can be used to identify the center point of the transmitting device logic levels. Furthermore, the reference signal allows the receiver to track and compensate for noise introduced at the transmitter of the digital data signal.

Abstract: A circuit provides a modulation signal to an input terminal of a line modulator which places a line current modulated in accordance with the modulation signal on a telephone line. An amplifier of the circuit amplifies an analog input signal to provide the modulation signal at an output terminal. A first resistor and a first capacitor are coupled in series between a first input terminal of the amplifier and the line, and a second resistor and a second capacitor are coupled in series between a second input terminal of the amplifier and the line. First and second precharge amplifiers are used to precharge the first and second capacitors, respectively, to reduce DC setup time.

Abstract: The digital-to-analog converter includes an output line, and a plurality of converters receiving control signals representative of digital data. Each converter selectively connects the output line to a voltage in response to a respective one of the control signals. Optionally, the digital-to-analog converter further includes a reset circuit for resetting the voltage on the output line to a reset voltage between portions of the analog waveform representing a digital data symbol.

Abstract: A method and apparatus for controlling the DC line current on a telephone line and reducing the amount of error introduced to the system. The error is reduced by compensating for a DC error term introduced by an analog to digital converter having a DC offset. The DC offset is controlled digitally, allowing software to be used to limit the DC error in accordance with predefined parameters. Predefined parameters can be set to accommodate varying country specifications instead of using switches to control resistors and capacitors. In addition, changes in a country's requirements can be accomplished through software, instead of changing components or redesigning a circuit board. The use of software results in increased flexibility by allowing an infinite number of settings via software or software updates, allowing changes to be made quickly and easily throughout the world, and allowing error terms to be accommodated digitally.

Abstract: A low power differential comparator wherein the input stage bias is used not only to set a bias level but is also used to set the hysteresis level of the differential comparator circuit. The positive and/or negative inputs to the differential comparator circuit are referred to ground to reduce the total DC current draw, e.g., by a factor of 7. The multiple use of the input stage bias and grounded connections to the positive and/or negative inputs reduce the overall current requirements of the differential comparator circuit substantially while maintaining full operating speed as compared to conventional differential comparator circuits. In one embodiment using the low power differential comparator circuit, a clock receiver implements hysteresis which is relatively independent from variations in environmental factors such as temperature, and from power supply variations. In this embodiment, the input stage of a low power comparator circuit is biased by the output of a bias circuit.

Abstract: A content transformer transforms computer network content, such as a Web page, so that the content can be displayed on any type of user device that is communicatively coupled to a computer network. The content transformer functions as a surrogate server between any network content server and the user device, so that all content that is received by the user device first passes through the content transformer. The content transformer transforms Web form documents that are served by the content server so the documents are in a format that is suited for the user device. The content transformer divides a form document into a series of subdocuments that are optimized for the display screen and memory constraints of the user device. The content transformer also stores any user-provided data from the form document in a data storage location that is local to the content transformer.