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
Grid computing accounting and statistics management system
Medical capsule housing formed by thermal welding
Method and apparatus for an active low power mode of a portable computing device
Semiconductor memory system having ECC circuit and controlling method thereof
Distortion compensation device, distortion compensation method, and radio transmitter
Sending notification of event
Method and apparatus for reducing cost of optical amplification in a network
  Randomly Featured Patents
Wrist instrument and electronic apparatus
Combatting parasitic fungi with a combination of an active agent inhibiting respiration in the cytochrome complex III and of fenazaquine
Heater for massage nodes and massage therapy device including same
Leg frame and child chair having the same
Light emitting element having a metal oxide composite layer, and light emitting device, and electronic apparatus
Machine for producing a fibrous web from a fibrous suspension as well as a process and system for monitoring a drainage element
Vehicle access port cover
Exhaust system for marine gas turbine
Static random access memory having variable supply voltages to the memory cells and method of operating thereof