AUDIO MODULATORS

Brand Owner Address Description
AUDIO-TROL JERROLD ELECTRONICS CORPORATION Horsham PA AUDIO MODULATORS, AUDIO AMPLIFIERS AND ASSOCIATED CIRCUITS FOR SUPPLYING AUDIO SIGNALS TO TELEVISION RECEIVERS;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. The present invention relates to pulse width modulation (PWM) modulators, especially but not exclusively for digital audio applications; and to quantizers and power switching for the same. The present invention provides a pulse width modulation (PWM) modulator or converter having a guard band quantizer arranged to block low level signal inputs to the modulator in order to prevent narrow width output pulses. This arrangement is particularly advantageous when applied to tri-level PWM modulators, but can also be applied to other level PWM modulators such as bi-level for example. Quantization noise can be reduced by implementing the quantizer in a noise shaper circuit (or possibly a SDM) having loop feedback.