Electronic distribution system and method

• US 5,390,172 A
• Filed: 09/15/1992
• Issued: 02/14/1995
• Est. Priority Date: 09/15/1992
• Status: Expired due to Fees

• Current Assignee: Gilbert Kuang
• Original Assignee: Gilbert Kuang
• Inventors: Kuang, Gilbert
• Primary Examiner(s): Chin, Stephen
• Assistant Examiner(s): GHEBRETINSAE, TEMESGHEN
• Application Number:
  US07/945,010
• Time in Patent Office: 882 Days
• Field of Search: 375/107, 375/122, 370/60.1, 370/61.6, 370/94.1, 370/94.3, 370/62, 370/110.1, 340/825.07, 455/53.1, 455/49.1
• US Class Current: 370/432
• CPC Class Codes: H04L 12/1868 Measures taken after transmission, e.g. acknowledgments
• CPC Class Codes: H04M 11/08 specially adapted for optional reception of entertainment or informative matter

Abstract

An electronic distribution system and method for combining a digital data signal, such as digital broadcast material, with instructions and a destination list for electronic delivery to a distribution center over a communications circuit connectable to a predetermined set of remote destinations. At the distribution center, the destination list is accessed and a copy of the digital data signal and the instructions are forwarded to only those remote destinations on the destination list.

Claims

1. An electronic communications system for transmitting data signals over a communications circuit connectable to a predetermined set of remote destinations, comprising:

a combiner for combining a digital data signal with a set of instructions for use of the digital data signal and with a destination list including at least one remote destination selected from the predetermined set to form a first data package;

a first determiner for determining a first error code from the first data package;

a first transmitter for transmitting the first data package and the first error code over the communications circuit to a distribution center;

a first receptor at the distribution center for receiving the first data package and the first error code from the first transmitter;

a decoder for selecting the destination list from the first data package, reading the destination list and removing the destination list from the first data package to form a second data package;

a second determiner for determining a second error code from the first data package and an error detector for comparing the first error code with the second error code whereby to determine differences in the first data package after transmission to the first receptor;

a second transmitter for transmitting the second data package over the communications circuit to only the at least one remote destination included on the destination list;

a second receptor at the at least one remote destination for receiving the second data package from the second transmitter; and

a separator for separating the digital data signal from the set of instructions in the second data package.

2. The electronic communications system of claim 1, wherein said second determiner further determines an alpha error code from the second data package, the alpha error code being transmitted by the second transmitter to the remote destination;

and

the system further includes;

a third determiner for determining a beta error code from the second data package, and

an error detector for comparing the alpha error code with the beta error code whereby to determine differences in the second data package after transmission to the second receptor.