Abstract: Disclosed is a system and method for calibrating multiple printers, and particularly color printers, in a networked environment using data embedded in select color patches in target sheets generated by each printer, which embedded data allows automated processing of the target sheets and association of appropriate target sheet data with the correct printer. The embedded data preferably includes an identification of which of multiple printers a particular target sheet corresponds to, along with data about the target sheet itself.

Abstract: The present invention relates to the coordinated control method of torsional stress relay in large thermal power plants' generators (300 MW and above), which will be adopted when shaft torsional oscillations occur. This invention also publishes a method of realizing selective trip the generators and the trip criterions which are implemented by the torsional stress relay and coordinated control master station (Tmaster). Tmaster will real-time monitor the operating status of the generators and TSR, TMaster will also real-time generate a trip priority level sequencing by analyzing the unit output. When generators occur subsynchronous resonance and shaft torsional oscillation, this method can ensure that TSR will trip some generators of the power plant according to the real-time generated trip strategy to inhibit the shaft torsional oscillation and safeguard the units.

Abstract: The present invention is a network speaker 100 for an audio network distribution system 20. The present invention includes a network interface 110 that couples the network controller 120 to the audio network distribution system 20. The present invention additionally includes an audio format converter 121, a digital to analog converter (DAC) 122, a pre-amplifier 123, an amplifier 125, and may also include an analog to digital converter (ADC) 128. Additionally, the present invention includes speaker sensors 124 and a speaker/microphone driver 126.

Abstract: The present invention discloses an apparatus 100 that provides an order separator 330 for photographic order fulfillment. The present invention includes one or more output print devices 110 that print one or more photographic prints 320 of a photographic order 402/404/406 using photographic paper 300. Additionally included is a separator print 330 that is a sheet of photographic paper 300 that is larger than the photographic prints 302 of the photographic order 402/404/406. The present invention further includes a system controller 102 that controls the utilization of the photographic paper 300 of the output print devices 110 for the photographic prints 320. The system controller 102 controls whether to create the separator print 330 or the photographic prints 320. The individual separator print 330 creates a tab 401/403/405 separating different photographic orders 402/404/406 of the photographic prints when multiple photographic orders 400 are stacked together.

Abstract: Disclosed herein are detectors of audio ringing feedback, that is decaying feedback with a gain of less than one, those detectors utilizing a repeated gain measurement that applied to a range of gain values characteristic of ringing-type feedback. Those gain measurements, while in the range, increase a probability measurement of feedback. When the probability of feedback reaches a threshold, a detection of feedback is made and feedback countermeasures, such as the application of a notch filter, may be applied. Optionally, the audio gain around likely frequencies of feedback may be enhanced for a time to increase the resolution of identification of a feedback frequency, which may be identified through an interpolative method. Repeated gain measurements may also identify building-type feedback. A ringing detector may include more than one range of detection, for example for building, strong-ringing and weak-ringing feedback.

Abstract: Disclosed herein are detectors of audio ringing feedback, that is decaying feedback with a gain of less than one, those detectors utilizing a repeated gain measurement that applied to a range of gain values characteristic of ringing-type feedback. Those gain measurements, while in the range, increase a probability measurement of feedback. When the probability of feedback reaches a threshold, a detection of feedback is made and feedback countermeasures, such as the application of a notch filter, may be applied. Optionally, the audio gain around likely frequencies of feedback may be enhanced for a time to increase the resolution of identification of a feedback frequency, which may be identified through an interpolative method. Repeated gain measurements may also identify building-type feedback. A ringing detector may include more than one range of detection, for example for building, strong-ringing and weak-ringing feedback.

Abstract: Disclosed herein are portable teleconferencing products that implement a doubletalk detector in a low frequency range or in a frequency range commensurate with the frequencies through which sound may be efficiently transferred between a speaker and a microphone through an enclosure. Also disclosed herein are teleconferencing systems that implement a secondary doubletalk detector, a non-presumptive doubletalk detector, a confirmatory doubletalk detector, and/or a false doubletalk detector, whereby echo cancellation coefficients may be better adapted after echo path changing events through the use of accelerated coefficient adaptation or half-duplex operation until adaptation is restored.

Abstract: Disclosed herein are teleconferencing devices having remote access monitoring and control functions, and network systems and methods including and using the same. Also disclosed herein are methods for interacting with teleconferencing devices over an HTTP or other network service utilizing a persistent network connection and systems which implement the methods. Also disclosed are systems that permit clients to select which types of information to be updated in real-time to conserve bandwidth. Detailed information on various example embodiments of the inventions are provided in the Detailed Description below, and the inventions are defined by the appended claims.

Abstract: Disclosed herein are teleconferencing pods that include a microphone and a loudspeaker for open-air conversations, connectible to a separate telephonic device that generates an intermittent sidetone that is active at certain times not in the control or monitoring of the pod. In those pods is a sidetone suppressor that suppresses a distracting open-air echo produced from the intermittent sidetone and a compensator that detects sidetone transitions to avoid generating an echo signal in the pod and to avoid adapting suppression in the absence of an externally-generated sidetone. Sidetone suppression may be by several means, and may include variables controlled by adaption, including delay factors, scalers and coefficients. Detailed information on various example embodiments of the inventions are provided in the Detailed Description below, and the inventions are defined by the appended claims.

Abstract: This disclosure describes a multi-pod conferencing system for local conference participants to communicate with remote conference participants that includes a plurality of pods for local conference participants where an individual pod connects to one or more plurality of pods through a data communication means. The individual pods further include the following: pod processor means; an input device and a display; a loudspeaker that couples to a digital to analog converter; 3 physical bi-polar microphones positioned at 120 degree intervals in the horizontal resting plane of the pod, each individual physical microphone connects to a pair of audio ports with each audio port being equal distance from the loudspeaker, the physical microphones couple to analog to digital converting mean and pod processor means; 3 virtual microphones; pod echo cancellation means; and microphone gating means. The disclosed system further includes a base unit that couples to the plurality of pods through the data communication means.

Abstract: Disclosed herein are detectors of audio ringing feedback, that is decaying feedback with a gain of less than one, those detectors utilizing a repeated gain measurement that applied to a range of gain values characteristic of ringing-type feedback. Those gain measurements, while in the range, increase a probability measurement of feedback. When the probability of feedback reaches a threshold, a detection of feedback is made and feedback countermeasures, such as the application of a notch filter, may be applied. Optionally, the audio gain around likely frequencies of feedback may be enhanced for a time to increase the resolution of identification of a feedback frequency, which may be identified through an interpolative method. Repeated gain measurements may also identify building-type feedback. A ringing detector may include more than one range of detection, for example for building, strong-ringing and weak-ringing feedback.

Abstract: Disclosed herein are portable teleconferencing products that implement a doubletalk detector in a low frequency range or in a frequency range commensurate with the frequencies through which sound may be efficiently transferred between a speaker and a microphone through an enclosure. Also disclosed herein are teleconferencing systems that implement a secondary doubletalk detector, a non-presumptive doubletalk detector, a confirmatory doubletalk detector, and/or a false doubletalk detector, whereby echo cancellation coefficients may be better adapted after echo path changing events through the use of accelerated coefficient adaptation or half-duplex operation until adaptation is restored.

Abstract: This disclosure describes a method of gating a multi-pod conferencing system for local conference participants to communicate with remote conference participants that includes providing a plurality of pods where an individual pod connects to one or more plurality of pods through a data communication means. The individual pods further include: pod processor means, digital to analog converter means, analog to digital converting means, virtual microphone means, pod echo cancellation means, and microphone gating means. The disclosed method further includes providing a base unit that uses data communication means and base controller means. The disclosed method further includes the computed values of the pod gating means being distributed to other pods to gate the pods on and or off.

Abstract: Disclosed herein are portable teleconferencing products that implement a doubletalk detector in a low frequency range or in a frequency range commensurate with the frequencies through which sound may be efficiently transferred between a speaker and a microphone through an enclosure. Also disclosed herein are teleconferencing systems that implement a secondary doubletalk detector, a non-presumptive doubletalk detector, a confirmatory doubletalk detector, and/or a false doubletalk detector, whereby echo cancellation coefficients may be better adapted after echo path changing events through the use of accelerated coefficient adaptation or half-duplex operation until adaptation is restored.

Abstract: This disclosure describes a method of controlling a multi-pod conferencing system for local conference participants to communicate with remote conference participants. This method includes providing a plurality of pods to local conference participants wherein an individual pod connects to one or more of the plurality of pods through a data communication means. The individual pods further include pod processor means. The pod processor means couples to an input device and a display. The method further includes providing a base unit that couples to the plurality of pods through the data communication means. The base unit further couples to a carrier medium, where the base unit further includes base controller means. The base controller means couples to the converting means.

Abstract: An integrally mounted control point node for use in an audio distribution system and including a control processor for receiving command signals and providing audio control signals to response thereto; a command signal generator for producing the command signals in response to activation by a user of the system; a terminal for receiving a plurality of audio signals; an audio signal tuner for receiving the control signals and the audio signals; an amplifier receiving an output signal from the tuner and the control signals from the control processor; and a speaker terminal for transmitting the output signal to a speaker.

Abstract: This invention is a networked audio system (20). The invention includes a plurality of speaker nodes (100), a plurality of self-sufficient audio source node devices (300), an internet interface (400), a network control server (310), a legacy converter and controller (600) that connects to one or more legacy sources (500), all connected via an internet protocol network (200).