Method and apparatus for simultaneously displaying distribution patterns of equalized output signals from multiple channels

A distribution pattern display device for receiving and equalizing signals transmitted on a frequency-division multiplex basis and displaying the distribution patterns of received signals subjected to equalization, comprising:

• equalizing means for compensating for distortion which a signal on each frequency channel undergoes on a transmission path to produce an equalized output signal and outputting a signal quality signal indicating the receive condition of each channel;
• level conversion means for converting the signal levels of said equalized output signal and said signal quality signal on each channel from said equalizing means to signal levels which permit said equalized output signal and said signal quality signal to be displayed on a display area allocated to the corresponding channel by multiplying said equalized output signal and said signal quality signal by a predetermined value;
• coordinate transformation means for transforming the coordinates of a level-converted equalized output signal and a level-converted signal quality signal from said level conversion means so that they can be displayed on said display area of a display which is allocated to that channel;
• and
• control means for permitting coordinate-transformed equalized output signals and coordinate-transformed signal quality signals on the frequency channels output from said coordinate transformation means to be displayed simultaneously on corresponding respective display areas of said display.

A distribution pattern display method of displaying distribution patterns of equalized signals obtained by receiving and equalizing signals transmitted on a frequency-division multiplex basis, comprising the steps of:

• compensating for distortion of a received signal on each of frequency channels caused by a transmission path;
• converting the signal level of an equalized output signal on each channel by multiplying the equalized output signal on each channel by a predetermined value;
• transforming the coordinates of a level-converted equalized output signal on each channel so that it can be displayed on a display area of a display which is allocated to that channel;
• and
• displaying equalized output signals on the frequency channels simultaneously on corresponding respective display areas of said display.

A distribution pattern display method of displaying distribution patterns of equalized signals obtained by receiving and equalizing signals transmitted on a frequency-division multiplex basis, comprising the steps of:

• compensating for distortion of a received signal on each of frequency channels caused by a transmission path to produce an equalized output signal;
• outputting a signal quality signal indicating the receive condition of each channel;
• converting the signal level of said equalized output signal and said signal quality signal by multiplying said equalized output signal and said signal quality signal by a predetermined value;
• transforming the coordinates of a level-converted equalized output signal and a level-converted signal quality signal on each channel so that they can be displayed on a corresponding display area of a display which is allocated to that channel;
• and
• displaying equalized output signals and signal quality signals on the frequency channels simultaneously on corresponding respective display areas of said display.

A device for simultaneously displaying distribution patterns of signals transmitted over a plurality of frequency channels on a frequency-division multiplex basis, comprising:

• equalizing means for compensating for distortion of respective signals transmitted over the frequency channels and outputting equalized signals corresponding to the respective frequency channels;
• level conversion means for converting a signal level of the respective equalized output signals from the equalizing means and outputting level-converted signals corresponding to the respective frequency channels by multiplying the respective equalized output signals on respective frequency channels by a predetermined value;
• coordinate transformation means for transforming coordinates of respective equalized output signals level-converted by said level conversion means to display the respective level-converted equalized output signals in a display area corresponding to the respective frequency channels;
• a display device to display the respective coordinate-transformed output signals on corresponding display areas allocated to the respective frequency channels;
• and
• control means for controlling display of the respective coordinate-transformed output signals on the corresponding areas of the display allocated to the respective frequency channels.

A distribution pattern display device for displaying distribution patterns of a plurality of signals received from a plurality of frequency channels on a frequency-division multiplex basis, comprising:

• equalizing means for compensating for distortion of respective signals on said plurality of frequency channels to produce respective equalized output signals and corresponding signal quality signals indicating a receive condition of the respective frequency channels;
• level conversion means for converting the respective signal levels of the equalized output signals and the corresponding signal quality signals on respective frequency channels to signal levels which permit the respective equalized output signals and the corresponding signal quality signals to be displayed by multiplying the respective equalized output signals and the corresponding signal quality signals by a predetermined value;
• coordinate transformation means for transforming the coordinates of the respective level-converted equalized output signals and the corresponding level-converted signal quality signals from the level conversion means;
• a display to display the respective coordinate-transformed signals and the corresponding coordinate-transformed signal quality signals on areas allocated to the respective frequency channels;
• and
• control means for controlling display of the respective coordinate-transformed signals and the corresponding coordinate-transformed signal quality signals from said coordinate transformation means to simultaneously display the coordinate-transformed signals and the corresponding coordinate-transformed signal quality signals on areas of the display allocated to the respective frequency channels.

A distribution pattern display method for displaying distribution patterns of signals received on a plurality of frequency channels on a frequency-division multiplex basis, comprising the steps of:

• compensating for distortion of the signals received on respective frequency channels to produce respective equalized output signals corresponding to the respective frequency channels;
• converting respective signal levels of the equalized output signals corresponding to the respective frequency channels by multiplying the equalized output signals by a predetermined value;
• transforming coordinates of the respective level-converted signals;
• and
• simultaneously displaying the coordinate-transformed signals corresponding to the respective frequency channels on corresponding respective areas of a display.

A distribution pattern display method for displaying distribution patterns of signals received from a plurality of frequency channels on a frequency-division multiplex basis, comprising the steps of:

• compensating for distortion of signals received on respective frequency channels to produce respective equalized output signals;
• outputting respective signal quality signals indicating a receive condition of the respective frequency channels;
• converting signal levels of the respective equalized output signals and the respective signal quality signals by multiplying respective equalized output signals and respective signal quality signals by a predetermined value;
• transforming coordinates of the respective level-converted equalized output signals and the respective level-converted signal quality signals;
• and
• simultaneously displaying the respective coordinate-transformed equalized output signals and the respective coordinate-transformed signal quality signals on corresponding respective areas of a display.

A device for simultaneously displaying distribution patterns of signals transmitted over a plurality of frequency channels on a frequency-division multiplex basis, comprising:

• equalizing means for compensating for distortion of respective signals transmitted over the frequency channels and outputting equalized signals corresponding to the respective frequency channels;
• level conversion means for converting a signal level of the respective equalized output signals from the equalizing means and outputting level-converted signals responding to the respective frequency channels;
• coordinate transformation means for transforming a coordinate data of the level-converted output signals by adding predetermined offset signals to respective level-converted output signals into a coordinate data centering on predetermined coordinates in each quadrant of two dimensional coordinates and outputting coordinate-transformed signals;
• a display device to display the respective coordinate-transformed output signals on the corresponding display areas allocated to the respective frequency channels;
• and
• control means for controlling display of the respective coordinate-transformed output signals on the corresponding areas of the display allocated to the respective frequency channels.

A device for simultaneously displaying distribution patterns of signals transmitted over a plurality of frequency channels on a frequency-division multiplex basis, comprising:

• equalizing means for compensating for distortion of respective signals transmitted over the frequency channels and outputting equalized signals corresponding to the respective frequency channels;
• level conversion means for converting a signal level by multiplying the equalized output signals by predetermined offset value and outputting level-converted signals responding to the respective frequency channel;
• coordinate transformation means for transforming a coordinate data of the level-converted output signals by adding predetermined offset signals to respective level-converted output signals into a coordinate data centering on predetermined coordinates in each quadrant of two dimensional coordinates and outputting coordinate-transformed signals;
• a display device to display the respective coordinate-transformed output signals on corresponding display areas allocated to the respective frequency channels;
• and
• control means for controlling display of the respective coordinate-transformed output signals on the corresponding areas of the display allocated to the respective frequency channels.