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
Per-request control of DNS behavior
Method and apparatus for reducing cost of optical amplification in a network
System and method for combined I/Q generation and selective phase interpolation
Catalyst compositions for hydroformylation reaction and hydroformylation process using the same
Server system and method for discovering digital assets in enterprise information systems
Compression molding method and reinforced thermoplastic parts molded thereby
Measuring apparatus for measuring a physical property of a sample
  Randomly Featured Patents
Early warning method and device for ultrasonic probe and ultrasonic apparatus
Control apparatus and control method for high voltage power supply circuit and vehicle provided with control apparatus
Ventilating, cooling and heat reclaiming apparatus for cooking equipment
Ballast control system for submersible vessel
Shoe upper
Reducing latency when synchronizing access to a multi-user database over a network
X-ray image converter, device and method for recording, processing and illustrating images using X-rays
Therapeutic intervention in a genetic disease in an individual by modifying expression of an aberrantly or abnormally expressed gene
Two-dimensionally driving ultrasonic motor
Container