Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Random access memory capable of varying a frequency in active and standby modes










Image Number 5 for United States Patent #4616346.

In a memory selectively operable in an active and a standby mode, a first oscillation signal of a first frequency is produced by an oscillator (35a or 35b) in the standby mode so as to reduce electric power consumption, instead of a second oscillation signal which is produced in the active mode and which has a second frequency higher than the first frequency. The first and the second oscillation signals are selectively supplied as a substrate voltage to a substrate (20) through a substrate voltage production circuit (36). The oscillator may comprise a first circuit portion (46 to 48) for oscillating the second oscillation signal and a capacitor circuit (51 to 53) connected to the first circuit portion through a second circuit portion (56 to 58) in the standby mode so as to generate the second oscillation signal. Alternatively, the oscillator comprises first and second oscillator sections (61 and 67) for generating the first and the second oscillation signals and a selecting circuit (70) for selecting the first and the second oscillation signals. The second oscillation circuit is kept inactive during generation of the first oscillation signal.








 
 
  Recently Added Patents
Biometric data display system and method
Point-in-time copies in a cascade using maps and fdisks
Video-recording reservation management apparatus, method, program, and system
Workflow-enabled client
Configurable caged ball insert for a downhole tool
Information display
Laser protection polymeric materials
  Randomly Featured Patents
Dimensionally stable closed cell rigid polyisocyanate based foam prepared from a froth foaming mixture
Low-reflection transparent conductive multi layer film having at least one transparent protective layer having anti-smudge properties
Station for distributing products
Reduction of sorbic acid precipitation by volume control
Isocoumarins with cationic substituents
Permanent magnet drum separator with movable magnetic elements
Spontaneously-formed machinable glass-ceramics
Feeder for hay bales and stacks
Apparatus on a spinning preparation machine for monitoring and/or adjusting clearances at components
Method of manufacturing an electrode assembly for electrochemically etching rifling in gun barrels