초록 ▼

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 reconf

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 controls both sides.

대표청구항 ▼

[ 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 form

[ 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 instructions, wherein said software-configurable logic means includes logic elements whose functionality is capable of being changed in software.