Network virtual memory for a cable television settop terminal

Details Network virtual memory for a cable television settop terminal Network virtual memory for a cable television settop terminal

1995-11-13

1998-07-14

Peng, John K.

Television

Special applications

Manufacturing

348 10, 348 12, 348 13, 455 62, 455 61, 455 51, H04N 710

Patent

active

057812268

ABSTRACT:
The present invention comprises a memory management system employed in a settop terminal which utilizes memory available at the headend of a CATV system through a bidirectional CATV network to augment the memory resident within the settop terminal. The system includes a memory management unit that monitors the software application running on the settop terminal microprocessor, pre-fetches blocks of the program from the headend and stores these blocks in resident memory. The memory management unit manages the limited pool of settop terminal memory by dividing it into segments large enough to hold a single program block. Program blocks are fetched from the headend as needed by the microprocessor, and segments of memory containing program blocks not likely to be used are reused. The system provides sufficient read-ahead capability to ensure that the microprocessor has enough executable code to process at all times. The location of the memory is completely transparent to the microprocessor.

REFERENCES:
patent: 4712239 (1987-12-01), Frezza et al.
patent: 4777594 (1988-10-01), Jones et al.
patent: 4910791 (1990-03-01), Dickinson et al.
patent: 4912552 (1990-03-01), Allison, III et al.
patent: 4972504 (1990-11-01), Daniel, Jr. et al.
patent: 5020129 (1991-05-01), Martin et al.
patent: 5301327 (1994-04-01), McKeeman et al.
patent: 5311325 (1994-05-01), Edwards et al.
patent: 5373315 (1994-12-01), Dufresne et al.
patent: 5404505 (1995-04-01), Levinson
patent: 5452447 (1995-09-01), Nelson et al.
patent: 5539920 (1996-07-01), Menand et al.
patent: 5553311 (1996-09-01), McLaughlin et al.
patent: 5568180 (1996-10-01), Okamura
patent: 5586264 (1996-12-01), Belknap et al.
patent: 5592625 (1997-01-01), Sandberg
patent: 5614940 (1997-03-01), Cobbley et al.

Affiliated with

Also associated with

Rating

Network virtual memory for a cable television settop terminal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Network virtual memory for a cable television settop terminal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Network virtual memory for a cable television settop terminal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1887229