US 5,666,293 A · Downloading operating system software through a broadcast channel

Abstract

Set-top terminals utilized in broadband broadcast networks are becoming increasingly intelligent. Upgrading the operation of such terminals periodically requires upgrading the software, particularly the operating system, of the programmable processor which controls the terminal operation. To facilitate frequent upgrades, the network will carry a cyclic broadcast of a packetized data file containing the operating system. Periodically, a terminal will capture and store the broadcast operating system. In the preferred embodiment, the broadcast includes operating system files for a number of different terminal types and data identifying the current broadcast version of the operating system for each type of terminal. The terminal will check the broadcast version number for its terminal type operating system. If the broadcast version number differs from the version number for the operating system the terminal currently is running, then the terminal will capture only the file containing the operating system for the corresponding terminal type.

Claims45

Dependent claims

A set-top terminal device comprising:

a network interface module adapted to couple the terminal to a communication network for receiving at least selected ones of a plurality of broadcast digital broadband channels at least one of which carries audio/video program information in compressed, digital form in packets of a standardized format and at least one of which carries cyclically repetitive transmissions of operating system software in packets of the standardized format, wherein said network interface module receives an Asynchronous Transfer Mode (ATM) cell stream and extracts packets of the standardized format from payloads of ATM cells;
and
a digital entertainment terminal comprising:
(a) an audio/video processor responsive to at least some of the packets extracted by the network interface module for processing the compressed, digital audio/video program information;
(b) a memory;
(c) means for receiving inputs from a user;
and
(d) a control processor controlling operations of the set-top terminal;
wherein said control processor captures said operating system software from at least some of the packets extracted by the network interface module for one of the selected digital broadband channels within a transmission cycle, loads the captured operating system software into the memory and begins operation in accord with the operating system software loaded into the memory, said control processor controlling the network interface module and the audio/video processor in response to the user inputs in accord with the operating system software loaded in said memory.

6 more elements

A communication system comprising:

a source system comprising:
(a) a program source supplying a broadband program signal,
(b) a software server cyclically outputting a data file containing an operating system, and
(c) an encoder system for packetizing the broadband program signal and the data file in digital packets of a standard format, wherein said encoder system comprises an encoder for digitizing and compressing the broadband program signal into program data and encapsulating the program data in a sequence of packets of the standard format, a data module for encapsulating the data file containing an operating system in a sequence of packets of the standard format, and an Asynchronous Transfer Mode (ATM) multiplexer for combining the packets containing the broadband program information and the packets containing the data file into a single stream for broadcast through the network on a single one of the channels;
a digital network broadcasting a plurality of digital broadband channels, said digital network receiving and broadcasting the digital packets from the encoder system on at least one of the channels;
and
a plurality of set-top terminal devices, each set-top terminal device comprising:
(1) an interface coupled to the digital network for receiving at least a selected one of the channels, selectively including at least one channel carrying packets containing the broadband program information, and at least one channel carrying packets containing the operating system data file;
(2) a program signal processor for processing the packets containing the broadband program information;
(3) a memory;
(4) means for receiving inputs from a user;
and
(5) a control processor controlling operations of the set-top terminal;
wherein said control processor captures said operating system data file from a selected one of the digital broadband channels, loads the captured operating system into the memory and begins operation in accord with the operating system loaded into the memory, said control processor controlling the interface and the program signal processor in response to the user inputs in accord with the operating system loaded in said memory.

11 more elements

In a digital network broadcasting packetized audio/video program information through a plurality of digital broadband channels to a plurality of digital terminals connected to the network, a method comprising the steps of:

cyclically broadcasting an operating system together with predetermined identification data relating to the operating system on one digital broadband channel;
selectively receiving the one digital broadband channel and capturing the predetermined identification data;
comparing the captured predetermined identification data to identification data stored in one of the digital terminals;
based on the results of the comparison, capturing a copy of the operating system from the cyclical broadcast;
initiating operating of the one digital terminal in accord with the captured copy of the operating system;
receiving and storing application software in the one digital terminal via a digital communication link through the network;
and
executing the application software under control of the captured copy of the operating system.

5 more elements

A method comprising:

encoding a plurality of broadband program information signals as digitized, compressed data in packet streams of a standard format;
cyclically generating a first data file containing an operating system comprising code executable by a first type of terminal and a data file containing an operating system comprising code executable by a second type of terminal different in type from the first type of terminal;
forming a sequence of packets in the standard format including:
packets containing the first data file and a first identifier, packets containing the second data file and a second identifier, and at least one packet containing data associating the first and second identifiers with the first and second types of terminal, respectively;
broadcasting the packet streams and the sequence of packets on a plurality of multiplexed channels;
in a receiving terminal of a predetermined type:
(a) selectively receiving a channel carrying the sequence of packets;
(b) capturing said at least one packet;
(c) identifying the first type of terminal or the second type of terminal as corresponding to the predetermined type of the receiving terminal;
(d) recognizing the first or second identifier as associated with the identified terminal type;
(e) using the recognized identifier to capture a copy of the operating system for the identified terminal type from the sequence of packets;
and
(f) executing at least a portion of the code from the captured copy of the operating system for the identified terminal type to initiate operation of the receiving terminal, the operation of the receiving terminal including reception of a user selected channel carrying a packet stream and processing digitized, compressed data from that packet stream to present broadband program information to a user in humanly perceptible form.

10 more elements

A method comprising:

encoding a plurality of broadband program information signals as digitized, compressed data in packet streams of a standard format;
cyclically generating a first data file containing an operating system for a first type of terminal and a data file containing an operating system for a second type of terminal;
forming a sequence of packets in the standard format including:
packets containing the first data file and a first identifier, packets containing the second data file and a second identifier, and at least one packet containing data associating the first and second identifiers with the first and second types of terminal, respectively;
broadcasting the packet streams and the sequence of packets on a plurality of multiplexed channels,
wherein the multiplexed channels comprise Asynchronous Transfer Mode (ATM) virtual circuits, each virtual circuit being identified by a different virtual path identifier/virtual circuit identifier (VPI/VCI) value;
in a receiving terminal of a predetermined type:
(a) selectively receiving a channel carrying the sequence of packets;
(b) capturing said at least one packet;
(c) identifying the first type of terminal or the second type of terminal as corresponding to the predetermined type of receiving terminal;
(d) recognizing the first or second identifier as associated with the identified terminal type;
(e) using the recognized identifier to capture a copy of the operating system for the identified terminal type from the sequence of packets;
and
(f) initiating operation of the receiving terminal in accord with the captured copy of the operating system for the identified terminal type, operation of the receiving terminal including reception of a user selected channel carrying a packet stream and processing digitized, compressed data from that packet stream to present broadband program information to a user in humanly perceptible form.

11 more elements

A method comprising:

encoding a plurality of broadband program information signals as digitized, compressed data in packet streams of a standard format;
cyclically generating a first data file containing an operating system comprising code executable by a first type of terminal and a data file containing an operating system comprising code executable by a second type of terminal different in type from the first type of terminal;
forming a sequence of packets in the standard format including:
packets containing the first data file and a first identifier, packets containing the second data file and a second identifier, and at least one packet containing data associating the first and second identifiers with the first and second type of terminal and first and second operating system version numbers, respectively;
broadcasting the packet streams and the sequence of packets on a plurality of multiplexed channels;
in a receiving terminal of a predetermined type:
selectively receiving a channel carrying the sequence of packets;
capturing said at least one packet;
from the data in said at least one packet, identifying the first type of terminal or the second type of terminal as corresponding to the predetermined type of the receiving terminal;
from the data in said at least one packet, identifying the version number for the identified terminal type;
if the identified version number differs from a version number of an operating system previously stored in the receiving terminal, recognizing the first or second identifier as associated with the identified terminal type and using the recognized identifier to capture a copy of the operating system for the identified terminal type from the sequence of packets;
and
executing at least a portion of the code from the captured copy of the operating system for the identified terminal type to initiate operation of the receiving terminal, the operation of the receiving terminal including reception of a user selected channel carrying a packet stream and processing digitized, compressed data from that packet stream to present broadband program information to a user in humanly perceptible form.

10 more elements

A method comprising:

encoding a plurality of broadband program information signals as digitized, compressed data in packet streams of a standard format;
cyclically generating a first data file containing an operating system for a first type of terminal and a data file containing an operating system for a second type of terminal;
forming a sequence of packets in the standard format including:
packets containing the first data file and a first identifier, packets containing the second data file and a second identifier, and at least one packet containing data associating the first and second identifiers with the first and second type of terminal and first and second operating system version numbers, respectively;
broadcasting the packet streams and the sequence of packets on a plurality of multiplexed channels,
wherein the multiplexed channels comprise Asynchronous Transfer Mode (ATM) virtual circuits, each virtual circuit being identified by a different virtual path identifier/virtual circuit identifier (VPI/VCI) value;
in a receiving terminal of a predetermined type:
selectively receiving a channel carrying the sequence of packets;
capturing said at least one packet;
from the data in said at least one packet, identifying the first type of terminal or the second type of terminal as corresponding to the predetermined type of receiving terminal;
from the data in said at least one packet, identifying the version number for the identified terminal type;
if the identified version number differs from a version number of an operating system previously stored in the receiving terminal, recognizing the first or second identifier as associated with the identified terminal type and using the recognized identifier to capture a copy of the operating system for the identified terminal type from the sequence of packets;
and
initiating operation of the receiving terminal in accord with the captured copy of the operating system for the identified terminal type, operation of the receiving terminal including reception of a user selected channel carrying a packet stream and processing digitized, compressed data from that packet stream to present broadband program information to a user in humanly perceptible form.

11 more elements

A communication system comprising:

a source system supplying a broadband program signal, and a cyclically repeating data file containing an operating system, said broadband program signal and the data file being encoded in digital packets of a standard format;
an Asynchronous Transfer Mode (ATM) digital network broadcasting a plurality of digital broadband channels in virtual circuits, each virtual circuit being identified by a different virtual path identifier/virtual circuit identifier (VPI/VCI) value, said digital network receiving and broadcasting the digital packets from the source system on at least one of the channels;
and
a plurality of set-top terminal devices, each set-top terminal device comprising:
(1) an interface coupled to the digital network for receiving at least a selected one of the channels, selectively including at least one channel carrying packets containing the broadband program information, and at least one channel carrying packets containing the operating system data file;
(2) a program signal processor for processing the packets containing the broadband program information;
(3) a memory;
(4) means for receiving inputs from a user;
and
(5) a control processor controlling operations of the set-top terminal;
wherein said control processor captures said operating system data file from a selected one of the digital broadband channels, loads the captured operating system into the memory and begins operation in accord with the operating system loaded into the memory, said control processor controlling the interface and the program signal processor in response to the user inputs in accord with the operating system loaded in said memory.

8 more elements

A set-top terminal device comprising:

a network interface module adapted to couple the terminal to a communication network for receiving at least selected ones of a plurality of broadcast digital broadband channels at least one of which carries audio/video program information in compressed, digital form in packets of a standardized format and at least one of which carries cyclically repetitive transmissions of operating system software in packets of the standardized format;
and
a digital entertainment terminal comprising:
(a) an audio/video processor for processing the compressed, digital audio/video program information;
(b) an operating system memory;
(c) a random access memory;
(d) means for receiving inputs from a user;
and
(e) a control processor controlling operations of the set-top terminal, wherein
said control processor captures said operating system software from one of the selected digital broadband channels within a transmission cycle, loads the captured operating system software into the operating system memory and begins operation in accord with the operating system software loaded into the operating system memory,
said control processor captures application software received through the network interface module, stores captured application software in the random access memory and executes the stored application software under control of the captured copy of the operating system, and
said control processor controls the network interface module and the audio/video processor in accord with the operating system software loaded in said operating system memory, and controls at least some responses to the user inputs with the application software.

9 more elements

A communication system comprising:

a source'system comprising:
(a) a program source supplying a broadband program signal,
(b) a software server cyclically outputting a data file containing an operating system, and
(c) an encoder system for packetizing the broadband program signal and the data file in digital packets of a standard format;
a digital network broadcasting a plurality of digital broadband channels, said digital network receiving and broadcasting the digital packets from the encoder system on at least one of the channels and transporting an application program through at least one digital broadband channel;
and
a plurality of set-top terminal devices, each set-top terminal device comprising:
(1) an interface coupled to the digital network for receiving at least a selected one of the channels,
(2) a program signal processor for processing packets containing the broadband program information received through the interface,
(3) an operating system memory,
(4) a random access memory for storing the application program when received through the interface,
(5) means for receiving inputs from a user, and
(5) a control processor controlling operations of the set-top terminal,
wherein said control processor captures said operating system data file from a selected one of the digital broadband channels, loads the captured operating system into the memory and begins operation in accord with the operating system loaded into the memory, said control processor executing the application program from the random access memory and controlling the interface and the program signal processor in accord with the operating system loaded in said memory and controlling at least some responses to user inputs in accord with the application program.

11 more elements

Dependencies are inferred from the claim text.

Downloading operating system software through a broadcast channel

Life of this patent

Downloading operating system software through a broadcast channel

Life of this patent

Abstract

Claims45