|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||H04B-001/38 H04L-005/16 H04L-027/00|
|미국특허분류(USC)||375/222 ; 375/259 ; 375/295 ; 375/316 ; 332/185 ; 329/372|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 217 인용 특허 : 10|
A universal modem has a software-configurable modulator/demodulator which accommodates different modulation formats such as those associated with terrestrial, cable, phone line, satellite and wireless communications to be transmitted and received through a single device in which the modem has reconfigurable logic to accommodate the format of the signals being received or transmitted. In one embodiment, the system tracks channel noise and changes modulation format at both the transmit and receive sides of the system through the use of a controller that co...
[ What is claimed is:] [1.] In a network communications system in which information is transmitted from a send side to a receive side over a communications channel, an apparatus for improving system performance comprising:means for sensing a channel parameter; andmeans for changing a modulation format of the transmitted information by generating instructions including modulation format configuration data, responsive to the sensed channel parameter, and having software-configurable logic means for changing the modulation format in accordance with the inst...