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133 results about "Ringing" patented technology

In electronics, signal processing, and video, ringing is oscillation of a signal, particularly in the step response (the response to a sudden change in input). Often ringing is undesirable, but not always, as in the case of resonant inductive coupling. It is also known as hunting. It is closely related to overshoot, generally occurring following overshoot, and thus the terms are at times conflated.

Method and process for reducing tinnitus

A process and system for reducing Tinnitus includes receiving an input audio sound by a user. The user listens to different tones (frequencies) of the received audio to determine both amplitude and frequency of the ringing or tinnitus tone in user's ears and provides tactile response on an input device (keyboard, etc.). The offending frequencies and amplitudes are identified based on the user's responses and a diagnosis from the data collected is produced and a tone map for each ear separately is created and the collection of tones and amplitudes are provided to the user to hear. User is tested for amplitude of these tones and the tones are increased until the audible ringing disappears as the phase of these tones will be shifted from zero to negative 180 degrees and as their level is increased, the ringing will decrease until it is substantially reduced.
Owner:MAX SOUND CORP

Method, system and apparatus for implementing multimedia customized ring back tone service

The embodiment of the invention provides a method for realizing multimedia color ring back tone (CRBT) service, which includes that: a calling terminal launches a call request; a strategy for broadcasting CRBT is analyzed according to the call request, the strategy for broadcasting CRBT refers to the strategy for broadcasting CRBT from a calling party or from a called party or the strategy for filtering CRBT; according to the result of the analysis, media negotiation of CRBT from a calling party or media negotiation of CRBT from a called party is carried out or the media negotiation of CRBT is not carried out; after receiving ringing signals of the called party, according to the result of the media negotiation, the CRBT from a calling party or the CRBT from a called party is broadcasted to the calling party or the CRBT is not broadcasted. By the technical proposal provided by the embodiment of the invention, calling party CRBT service can be realized in the IMS field, and calling party CRBT service or called party CRBT service can be determined to be provided to the calling party according to ordered strategies, and meanwhile, CRBT filtration service can also be realized, thus ensuring that users can experience the autonomy of the CRBT service.
Owner:HUAWEI TECH CO LTD

Current decay control in switched reluctance motor

A control circuit (10) for controlling the residual or tail current decay in a single phase or polyphase SRM winding when a phase is switched from active to inactive. A Hall-effect type sensor (30) senses rotor position of the SRM. Current flows through a winding (W) of the motor when the motor phase winding is active; and, current flow into the winding decays to zero when the phase becomes inactive. Semiconductor switches (22) direct current flow into the winding when the phase is active and then redirect residual energy in the winding between an energy recovery circuit and an energy dissipation circuit when the phase becomes inactive. A PWM signal generator (44) provides PWM operating signals to the switches to control current flow first into the winding and then between the recovery and dissipation circuits. A control module (42), or microprocessor (52) with a PWM output, is responsive to rotor position information for controlling operation of the PWM signal generator. The signal generator provides PWM signals having one set of signal characteristics when there is current flow to the winding and a different set of characteristics when there is not. This produces alternate intervals of zero voltage and forced commutation residual current decay while the phase is inactive. During the decay interval, both the PWM frequency and pulse duty cycle are variable to produce a current decay scheme which eliminates ringing and motor noise.
Owner:NIDEC MOTOR CORP

Outbound prediction method and device for intelligent customer service

The invention discloses an outbound prediction method and device for intelligent customer service, computer equipment and a readable storage medium. The method comprises the following steps: acquiringa preset ringing model, wherein the preset ringing model refers to a corresponding relationship between outbound ringing duration and user connection probability; inputting the current outbound ringing duration into the preset ringing model to obtain the user connection probability of the current outbound call; determining a predicted total outbound call amount according to the user connection probability and the seat idle duration of the current outbound call; and performing outbound according to the predicted total outbound amount, and updating the preset ringing model according to an outbound result. According to the method and the device, the technical problem of user resource waste caused by relatively high call loss rate of an outbound prediction algorithm in related technologies issolved. According to the method and the device, the purpose of reducing the call loss rate by accurately predicting the call-out amount is achieved, so that the technical effect of improving the seatutilization rate and the user resource utilization rate is achieved.
Owner:北京高阳捷迅信息技术有限公司

Smart home remote control system based on telephone network and control method thereof

The invention discloses a smart home remote control system based on a telephone network. The system comprises a ringing detection module and a DTMF dual-audio coding and decoding module, which are respectively connected in parallel with two ends of a household telephone. The output terminal of the ringing detection module is connected with a main controller; a signal sending part and a signal receiving part of the DTMF dual-audio encoding and decoding module are connected with the main controller; the main controller is connected with the input terminal of an analog off-hook and on-hook module, and the analog off-hook and on-hook module is connected with a telephone in series to realize on-off control of a circuit; the main controller is further connected with a voice prompt module, the voice prompt module is connected with a power amplification circuit, the power amplification circuit is connected to a telephone line in parallel, and the voice prompt module prompts a user to operate the controller; a clock module in the main controller is connected with a display module; and a control pin on the main controller is connected with an electric appliance and is used for controlling the on-off and state of the electric appliance.
Owner:XI'AN POLYTECHNIC UNIVERSITY

Method for controlling electric appliance by telephone ringing signal

InactiveCN101605192ANot easy to mishandleLow costTelephonic communicationRemote controlOff-hook
The invention relates to the technical field of remote control, in particular to a method for controlling an electric appliance by a telephone ringing signal, which comprises the following steps: waiting; judging whether a ringing signal exists; ringing treatment; starting a timer 1; counting until the completing of the ringing by a counter 1; comparing with a set frequency N1; judging whether the first count is equal to the N1; starting a counter 2 to count until the ringing finishes; comparing with a set frequency N2; judging whether the second count is equal to the N2; judging whether the ringing is within a timing range of the timer 1; starting a driving circuit to open or close a switch; and resetting the counter. The method has the advantages that: the mode of double ringing serial counting is adopted, so the method realizes remote control of the electric appliance by the frequency of the ringing signal, has corresponding security, and is not easy to errorly operate the electric appliance; in addition, the ringing signal is free of charge, so the method realizes control under the condition of without off-hook, and greatly saves the cost.
Owner:蒋菊生

Energy collection device for ringing phenomenon of power device

The invention discloses an energy collection device for a ringing phenomenon of a power device, and the device achieves the energy collection of the ringing phenomenon of the power device through theconnection of a hollow coupling coil to a power loop of a converter on the premise that a system meets the electromagnetic compatibility. Electromagnetic interference energy generated by switching transient voltage and current waveform high-frequency ringing is sensed into a passive element on a secondary side, an alternating current signal is rectified into a direct current signal through a rectifying circuit, the direct current signal is stored and managed by a post-stage circuit, so that energy collection is achieved. And a PCB Rogowski coil is used as a hollow coupling coil, so that the influence of the coil on a power loop is reduced. Moreover, a passive element circuit is used for being coupled to a converter power loop to increase the impedance of the circuit, and suppression of converter switching waveform ringing can be realized by adjusting parameters of the passive element circuit. On the premise of not sacrificing the switching speed of the power device, the reliability problem and the electromagnetic interference problem caused by voltage and current spikes and ringing are solved.
Owner:HUNAN UNIV

Calling method and calling device

The invention discloses a calling method and a calling device. The calling method comprises the following steps: receiving a ringing message of a called party, determining a first resource reservationstate of the called party according to the ringing message, and determining a first moment when the first resource reservation state is updated; determining a second resource reservation state of thecalled party according to the first session initial protocol message under the condition of receiving the first session initial protocol message sent by the called party, and determining a second moment when the second resource reservation state is updated; and under the condition that the second moment is later than the first moment, determining an actual resource reservation state of the calledparty according to the second resource reservation state. According to the embodiment of the invention, the actual resource reservation state of the called party is determined according to the resource reservation state updating moment, the technical problem that the old resource reservation state covers the new resource reservation state due to SIP message retransmission is avoided, and the success rate and reliability of voice call and video call establishment are effectively improved.
Owner:VIVO MOBILE COMM CO LTD
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