Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Frequency hopping in digital cellular networks










Image Number 2 for United States Patent #5430713.

A circuit is for providing frequency hopping in a Time Division Multiple Access (TDMA) system. A microprocessor determines the frequency to be transmitted in a particular broadcast frame. A dual port random access member (RAM) provides an interface between the microprocessor and a time division multiplex bus so that the time slots are mapped to addresses in the memory. A plurality of transceivers coupled to the bus transmits and receives at different designated frequencies, the transceivers being chosen for particular users during a particular broadcast frame based on the location in the memory chosen by the microprocessor.








 
 
  Recently Added Patents
Phosphonate compounds
Aqueous composition with agents to inhibit water evaporation
Systems, methods, and apparatus to prepare a mobile device for provisioning
Method and mobile device for awareness of language ability
(4938
Shape memory polymers formed by self-crosslinking of copolymers
Image stabilization
  Randomly Featured Patents
Battery charger
Method and apparatus for secure IM communications using an IM module
Plate and method for high throughput screening
Apparatus and method for diagnosing faults of fuel vapor treatment unit
Methods and systems for improving low-resolution video
Toy sword with contact indicator
Lobster-shaped built-up toy
Method and apparatus for removing baseline wander from an egg signal
Portable power supplying device
Method and apparatus to control dispensing rate of a solid product with changing temperature