Display update controller

In a computer receiving data at a data input port, and including first memory storage means, second memory storage means, a controller, display memory and a display, a method for controlling the transfer of data to said display memory comprising the steps of:

• (a) loading said data in said first memory storage means;
• (b) periodically transferring said data stored in said first memory storage means to said second memory storage means;
• (c) counting the number of bytes of data transferred from said first memory storage means to said second memory storage means and thereby producing a byte count value;
• (d) determining if data is being received at said data input port;
• (e) comparing said byte count value to a preselected value and delaying transfer of said data from said second memory storage means to said display memory when said byte count value is greater than said preselected value and data is being received at said data input port.

In a computer receiving data at a data input port, and including first memory storage means, second memory storage means, a controller, a timer, display memory and a display, a method for controlling the transfer of the data to said display memory comprising the steps of:

• a) loading said data in said first memory storage means;
• (b) periodically transferring said data stored in said first memory storage means to said second memory storage means;
• (c) counting the number of bytes of data transferred from said first memory storage means to said second memory storage means and thereby producing a byte count value;
• (d) determining if data is being received at said data input port;
• (e) causing said timer to determine the time expired since the most recent update of the display memory using data transferred from said second memory storage means;
• (f) comparing said byte count value to a preselected value and delaying transfer of said data from said second memory storage means to said display memory when said byte count value is greater than said preselected value, data is being received at said data input port, and a predetermined time period has not expired on said timer.

A display update controller, comprising:

• a data input port;
• a first memory storage device, for storing data received at said input data port;
• a second memory storage device for storing data transferred from said first memory storage device;
• a display memory connected to said second memory storage device for storing data that is being displayed;
• and
• a controller periodically;
• (a) transferring data from said first memory storage device to said second memory storage device;
• (b) determining the number of bytes of data stored in said first memory storage device;
• (c) comparing the number of bytes of data in said first memory storage device to a preselected value;
• (d) not transferring said data from said second memory storage device to said display memory when said number of bytes of data in said first memory storage is greater than said preselected value.

A display update controller, comprising:

• a data input port;
• a first memory storage device, for storing data received at said input data port;
• a second memory storage device for storing data transferred from said first memory storage device;
• display memory connected to said second memory storage device for storing data that is to be displayed;
• a timer, wherein said timer measures the time expired since the most recent update of said display memory using the data in said second memory storage device;
• and
• a controller periodically;
• (a) transferring data from said first memory storage device to said second memory storage device;
• (b) determining the number of bytes of data in said first memory storage device;
• (c) comparing the number of bytes of data in said first memory storage device to a preselected value;
• (d) not transferring said data from said second memory storage device to said display memory when said number of bytes of data in said first memory storage device is greater than said preselected value, data is being received at said data input port and said timer has not expired.

In a computer receiving data, the computer including first memory storage means for storing data input, second memory storage means, a controller, display memory and a display device, a display update controller, comprising;

• means for loading said data into said first memory storage means when said data is received by said computer;
• means for transferring said data from said first memory storage means to said second memory storage means;
• means for detecting the number of bytes of data stored in said first memory storage means;
• means for transferring said data from said second memory storage means to said display memory;
• and
• controller means for delaying updating said display memory with said data from said second memory storage means when the number of bytes of data located in said first memory storage means is greater than a preselected value.

In a computer receiving data, the computer including first memory storage means for storing data input, second memory storage means, a controller, display memory and a display device, a display update controller, comprising:

• means for loading said data into said first memory storage means when said data is received by said computer;
• means for transferring said data from said first memory storage means to said second memory storage means;
• means for detecting the number of bytes of data stored in said first memory storage means;
• means for transferring said data from said second memory storage means to said display memory;
• and
• controller means for delaying updating said display memory when the number of bytes of data stored in said first memory storage means is greater than a preselected value and when data is being received by said computer.

In a computer receiving data, the computer including first memory storage means for storing data input, a controller, display memory, a display device and a timer for determining the time period since the display was last updated, a display update controller, comprising:

• means for detecting when data is being received at said data input port;
• means for loading said data into said memory storage means when said data is received by said computer;
• means for transferring said data from said first memory storage means to said second memory storage means;
• means for detecting the number of bytes of data stored in said first memory storage means;
• means for transferring said data from said second memory storage means to said display memory;
• and
• controller means for delaying updating said display memory when the number of bytes of data stored in said first memory storage means is greater than a pre-selected value, data received at said data input port has not stopped, and said timer has not expired, thereby permitting said controller to spend more time transferring said data from said first memory storage means to said second memory storage means.