Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Digital modulating/demodulating method and apparatus using same










Image Number 16 for United States Patent #5638064.

Digital modulating method and apparatus are provided which converts m-bit data codes, in sequence, into digital modulation codes each consisting of n channel bits (n>m) to form a modulation code sequence using connection codes. Bit patterns of portions of the modulation code sequence and the connection codes are changed or additional bit patterns are inserted into the modulation code sequence so as to meet given conditions of a minimum transition interval, a maximum transition interval, and a Digital Sum Value. Demodulating method and apparatus performing a reverse modulation operation are also described.








 
 
  Recently Added Patents
Compact ion accelerator source
Monofocal photographing lens assembly
Recovering a database to any point-in-time in the past with guaranteed data consistency
Performing a cyclic redundancy checksum operation responsive to a user-level instruction
Method and device for managing devices in device management system
Blue box
Method and system for video parameter analysis and transmission
  Randomly Featured Patents
Imaging communication system
Semiconductor memory for disconnecting a bit line from a sense amplifier in a standby period and memory system including the semiconductor memory
Semiconductor memory device including multi-layer gate structure
Methods and apparatus for use in switching user account data and operations between two different mobile communication devices
Anode-assisted cation reduction
Belt member incorporated in image forming apparatus
Spherical grains of polyamino acid and production method thereof
Passenger restraint system
Codec-independent technique for modulating bandwidth in packet network
Linear permanent mould casting system