Resources Contact Us Home
Electronic signal processor

Image Number 4 for United States Patent #7932458.

An electronic signal processor for processing signals includes a complex first filter, one or more gain stages and a second filter. The first filter is characterized by a frequency response curve that includes multiple corner frequencies, with some corner frequencies being user selectable. The first filter also has at least two user-preset gain levels which may be alternately selected by a switch. Lower frequency signals are processed by the first filter with at least 12 db/octave slope, and preferably with 18 db/octave slope to minimize intermodulation distortion products by subsequent amplification in the gain stages. A second filter provides further filtering and amplitude control. The signal processor is particularly suited for processing audio frequency signals. Related methods include filtering the input signal with an input filter of the second or third order high pass type, amplifying the filtered signal and further filtering the amplified signal with a low pass filter, which may be of the second order type.

  Recently Added Patents
Data management tool
Stack and folding-typed electrode assembly and method for preparation of the same
Image forming apparatus and information processing apparatus
Stable nanoemulsions for ultrasound-mediated drug delivery and imaging
Adhering composition and method of applying the same
Redundant power delivery
Audit planning
  Randomly Featured Patents
Electric connection box
Squeeze bag for resuscitators and the like
System and method for identifying and categorizing messages extracted from archived message stores
Manufacturing method power semiconductor device
Preset case, development apparatus, process cartridge, and image forming apparatus
System for nondestructive, ultrasonic testing of test objects
Galvano mirror unit
Optical light valve system for providing phase conjugated beam of controllable intensity
Pneumatic tires for vehicle wheels