US4674103A - Method and arrangement for detecting the presence of a training signal in a
modem receiver - Google Patents US4674103A - Method and arrangement for detecting the …

[57] ABSTRACT A modem for receiving data sent from a remote device over a
communication channel by using a single carrier modulated signal, the modem including a …

James H. Morris 57 ABSTRACT The invention relates to a device for identifying a predeter
mined sequence of signals arriving on a modem, the sequence having a frequency …

When the present modem control apparatus detects that the receive level of a probing
Signal in phase 2 of the pre communication procedure or a tone signal with a specific …

A modem receiver which provides a measure of transmission channel signal distortion
characteristic without the need of transmitted reference pulses by generating in succession …

A method of determining the data rate of signals received on a communication line is
disclosed. The method analyzes the training signals which normally precede each data …

US5040194A - Method and apparatus for providing for automatic gain control of incoming
signals in a modem - Google Patents US5040194A - Method and apparatus for providing for …

A multipoint type MODEM communication system having a training device for adapting
receiving parameters in a receiving MODEM to a characteristic of a telephone line …

An automatic gain control circuit suitable for use in a modem receiver for receiving a
modulated carrier rep resenting data, includes a variable gain ampli? er adapted to receive …

US5926506A - Method and apparatus for automatically recognizing a modem type of a modem
connected to terminal equipment and for automatically adapting the terminal equipment to the …