Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Direct down-conversion receiver with transconductance-capacitor filter and method










Image Number 2 for United States Patent #7139544.

A direct-down conversion receiver may include a transconductance-capacitor (GmC) filter to filter undesirable mixing products and provide a filtered baseband-differential signal. The GmC filter may include first and second transconductance-capacitor (GmC) circuits in series and a transconductance-feedback circuit in feedback with the second transconductance-capacitor circuit. The GmC circuits may comprise cross-coupled pairs of transistors to receive a baseband-differential signal and generate a differential output current. The GmC circuits may also comprise MOSCAPs coupled respectively between the differential inputs of the GmC circuit and internal-feedback nodes. In some embodiments, a substantially-constant bias voltage may be maintained across the voltage-dependent capacitors to allow the voltage-dependent capacitors to provide a substantially constant capacitance.








 
 
  Recently Added Patents
Methods and systems for managing print device supplies using cloud administration system configured for chemical signature tracking
Qualification screening system and screening method thereof, qualification screening device and device under qualification screening
Storage apparatus and method including page discard processing for primary and secondary volumes configured as a copy pair
Catalyst compositions for hydroformylation reaction and hydroformylation process using the same
Imaging lens with three lens elements, and electronic apparatus having the same
System and method for managing investment funds
Multiple RF band operation in mobile devices
  Randomly Featured Patents
System and method for likelihood computation in multi-stream HMM based speech recognition
Method for enhanced oil recovery by geopressured waterflood
System and method for event-based rendering of visual effects
Chain conveyor for loading devices and/or conveying devices
Semiconductor device for control of light
Yarn package support bearing
Polymeric broad-spectrum antimicrobial materials
Process for measuring a part
Software interrupt generator for computer bus interface
Reclosable thermoformed blister-type package