Patent application number | Description | Published |
20080211594 | Multi-Channel Pulse Modulator System - The present invention relates to a multi-channel pulse modulator system comprising a pulse modulator circuit, wherein said pulse modulator circuit comprises an N-channel, wherein the modulator output is output from the pulse modulator circuit by means of L output connections of the pulse modulator circuit and where L is less than the number of modulator channels N. The invention further relates to a method of converting an N-channel pulse modulated signal into an M-channel signal, where M is less than N. | 09-04-2008 |
20080278253 | Pulse Width Modulator System - The invention relates to pulse width modulator system (PWMS) comprising a modulator system input (MI), a modulator output (MO), an amplitude distribution filter (ADF), and a pulse width modulator (PMOD), wherein said amplitude distribution filter (ADF) establishes an intermediate output signal (OS) by modifying the level of the amplitude distribution of an input signal (IS) within at least one predetermined amplitude range of said input signal (IS), said input signal (IS) being received from said modulator system input (MI), and wherein said pulse width modulator (PMOD) provides a modulator output signal (MOS) on said modulator output (MO) on the basis of said intermediate output signal (OS). | 11-13-2008 |
20090251229 | SELF-OSCILLATING MODULATOR WITH IMPROVED SYNCHRONISATION AND PWM CYCLE CONSTRAINTS - The present invention relates to a self-oscillating modulator ( | 10-08-2009 |
20100052805 | HIGH-MODE SELF-OSCILLATING PULSE MODULATOR - The invention relates to a high-mode self-oscillating pulse modulator. According to the invention, a complete rethinking of preconditions for oscillation and modulation in an oscillating modulator as all conventional thinking of how to apply oscillation in a modulator has been set aside. Thus, according to the invention, high-mode oscillation refers to an oscillation at a higher mode than the first mode, which is conventionally regarded as the one and only applicable mode in an oscillating modulator. | 03-04-2010 |
20100245139 | PULSE MODULATION A/D-CONVERTER WITH FEEDBACK - The invention relates to an A/D converter comprising an input and an output, a D/A converting feedback and a pulse width modulating forward path, the D/A converting feedback comprising at least one feed-back path, the feed-back path establishing a D/A conversion based on at least two D/A conversions subject to uncorrelated errors. | 09-30-2010 |
20100272294 | TWO-CHANNEL AMPLIFIER WITH COMMON SIGNAL - A two-channel amplifier with common signal including a splitter for establishing three intermediate signals on the basis of two input signals, wherein the three intermediate signals represent two channels, one of the three intermediate signals being a common signal common to both of the two channels and having a representation based on a sum of the two input signals. | 10-28-2010 |
20120067193 | POLYPHONIC TUNER - The present invention relates to a musical instrument tuner, e.g. a guitar tuner, featuring tuning as a part of a user session. | 03-22-2012 |
20130112063 | POLYPHONIC TUNER - The present invention relates to a musical instrument tuner, e.g. a guitar tuner, featuring tuning as a part of a user session. | 05-09-2013 |
Patent application number | Description | Published |
20100194413 | METHOD OF DETERMINING AN IMPEDANCE FUNCTION OF A LOUDSPEAKER - The invention relates to a method of determining an impedance function IF of a load LS driven by an amplifier AM, said method comprising the steps of providing a digital audio signal DAS to said amplifier AM, measuring one of either a current signal representation CSR of current provided to said load LS by said amplifier AM or a voltage signal representation VSR of voltage provided to said load LS by said amplifier AM, determining a digital signal representation DSR on the basis of said digital audio signal DAS, and determining said impedance function IF of said load LS on the basis of said digital signal representation DSR and said measured one of either said current signal representation CSR or said voltage signal representation VSR. The invention further relates to a load monitoring amplifier comprising amplification means AM comprising an amplifier input AI for receiving a digital audio signal DAS and an amplifier output AO for delivering an amplified signal to a load LS and an analog reading point AR establishing one of either a current signal representation CSR by measuring the current of said amplified signal delivered to said load LS or a voltage signal representation VSR by measuring the voltage of said amplified signal delivered to said load LS, said load monitoring amplifier further comprising a digital reading point DR for determining a digital signal representation DSR on the basis of said digital audio signal DAS and a monitoring means MM for determining an impedance function IF of said load LS on the basis of said digital signal representation DSR and said one of either said current signal representation CSR or said voltage signal representation VSR. | 08-05-2010 |
20120204702 | Polyphonic tuner - A musical instrument tuner for string instruments is disclosed, which comprises a signal classifier for determining a signal class of an input signal from a number of monophonic signal classes and a number of polyphonic signal classes, a signal analyzer for determining at least one representation of a pitch frequency of the input signal, and an indicator for displaying an output established on the basis of the signal class and the representation of a pitch frequency, wherein the indicator includes at least a monophonic display mode and at least a polyphonic display; and wherein the display mode is selected in dependency of the signal class determined by the signal classifier. Tuning methods, computer program products, music instruments, amplifiers and audio processors relating to the above are also disclosed. | 08-16-2012 |
20130186253 | POLYPHONIC TUNER - A musical instrument tuner for string instruments is provided which comprises a signal classifier for determining a signal class of an input signal from a number of monophonic signal classes and a number of polyphonic signal classes, a signal analyzer for determining at least one representation of a pitch frequency of the input signal, and an indicator for displaying an output established on the basis of the signal class and the representation of a pitch frequency. | 07-25-2013 |