MULTIPLEX COMMUNICATIONS

Classification 370/all - subclasses >> view this class definition

U. S. PATENT RESOURCES

As general guidance, a complete search of U. S. patents in this art area will include the following:

1. A classified search of the original classification class and subclass for the subject matter and the other highly relevant art areas in the US patent documents
2. A text search of the US patent documents; patents, PG PUB, and OCR databases:
• Broad text search for the general inventive concept(s), not limited by classification
• Narrow text search for the specific claimed invention
• Boolean text search employing the relevant inventive terms

The resources listed below are internal USPTO search tools. However, the information that they cover is available either commercially, on the USPTO web site, or in the Public Search Facility on the USPTO Headquarters campus and the Patent and Trademark Depository Libraries.

EAST/WEST

EAST Coverage: 1971 - present, Full Text: 1971 - present

WEST Coverage: 1971 - present, Full Text: 1971 - present

Full text patent and inventor searching.

All patent documents in a classification are viewed by USPC for relevance to the patent application being searched. Class/subclass searches are best for only a few specific areas, such as Voice Over Internet Protocol (VOIP) or special mathematical techniques for communications that are limited to a single subclass. It is difficult to find equivalent subject matter such as conditional statements using only text searches. Text searching alone is best for generic communications where techniques can be used over broad ranges of communication devices. Key words can uniquely define inventions such as specific protocols or devices that must be present to meet the claim limitations. Use of proximity operators is very important to ensure that claimed elements interact with each other.

BRS Search/USOCR Database

EAST Coverage: 1920 - 1970, Full Text: 1920 - 1970

WEST Coverage: 1920 - 1970, Full Text: 1920 - 1970

Full text of U.S. patent grants.

All patent documents in a classification are viewed by USPC for relevance to the patent application being searched.

PGPUBS

EAST Coverage: 2001 - present, Full Text: 2001 - present

WEST Coverage: 2001 - present, Full Text: 2001 - present

U.S. published applications.

All patent documents in a classification are viewed by USPC for relevance to the patent application being searched. Class/subclass searches are best for only a few specific areas, such as Voice Over Internet Protocol (VOIP) or special mathematical techniques for communications that are limited to a single subclass. It is difficult to find equivalent subject matter such as conditional statements using only text searches. Text searching alone is best for generic communications where techniques can be used over broad ranges of communication devices. Key words can uniquely define inventions such as specific protocols or devices that must be present to meet the claim limitations. Use of proximity operators is very important to ensure that claimed elements interact with each other.

FOREIGN PATENT RESOURCES

Searched separately from the U.S. Patent Search. These databases consist of abstract documents. Text searching abstracts requires the use of different search logic e.g. the use of broad Boolean and/or operators instead of narrow proximity operators.

Derwent World Patents Index and the contents of the EPO Abstracts and JPO Abstracts are available commercially.

Derwent World Patents Index, Classification and Text Search

EAST Coverage: 1963 - present, Full Text: - N/A

WEST Coverage: 1963 - present, Full Text: - N/A

English abstracts database of patent documents from more than 40 patent-issuing authorities.

Used for text and assignee/inventor searching. Queries may include classification parameters when combined with other terms to be searched in the technical content of the application.

EPO Abstracts, Text and Classification Search

EAST Coverage: 1978 - present, Full Text: - N/A

WEST Coverage: 1978 - present, Full Text: - N/A

English abstracts database of patents and published applications from EPO, WO/PCT, United Kingdom, France, Germany, and Switzerland. USPC searching is limited to documents added to the database from 1978 to September 30, 1995.

EPO patent documents in a USPC or an IPC classification are viewed for relevance to the patent application being searched. Used for text and assignee/inventor searching.

EPO esp@cenet

esp@cenet Coverage: 1920 - present, Full Text: 1920 - present

National patent information from all member states of the EPO as well as bibliographic data from patents worldwide.

Provides PDF images for the full text of patents from a number of countries. Has text search capabilities in the title and abstract fields as well as retrieval by IPC and ECLA classification numbers. While it can be used for searching, it can also be used for translations and foreign document retrieval.

FPAS3

Coverage: 1980 - present, Full Text: -

USPTO foreign patent document retrieval system.

JPO Abstracts, Text and Classification Search

EAST Coverage: 1976 - present, Full Text: - N/A

WEST Coverage: 1976 - present, Full Text: - N/A

English abstracts database of Japanese published unexamined applications. USPC searching is limited to documents added to the database from 1978 to September 30, 1995.

JPO patent documents in a USPC or an IPC classification are viewed for relevance to the patent application being searched. Used for text and assignee/inventor searching.

JPO Industrial Property Digital Library

NCIPI Coverage: 1976 - present, Full Text: 1976 - present

Japanese patent information.

Used as a source for machine translations of Japanese patent documents from 1993 to present.

NON-PATENT LITERATURE RESOURCES

The resources listed are those that USPTO staff have found consistently yield the most relevant search results. Commercial databases available through a single vendor can generally be searched simultaneously, although it is preferable to search full text and bibliographic databases in separate groupings. In addition to the use of subscription databases and public Internet sites, it is recommended that books, manuals, standards and specifications be considered in the search for prior art.

ACM Digital Library

ACM Coverage: Dates - vary, Full Text: Dates - vary

Citations and full text articles from ACM journals, newsletters, and conference proceedings.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

IEEE Xplore

IEEE Coverage: 1952 - present, Full Text: 1988 - present

Full text access to technical literature in electrical engineering, computer science, and electronics.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

Business Dateline

Dialog Coverage: 1985 - present, Full Text: 1985 - present

Full text of major news and feature stories from regional business publications from throughout the United States and Canada.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

CMP Computer Fulltext

Dialog Coverage: 1988 - present, Full Text: 1988 - present

Full text information about the computer, communications, and electronic industries.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

Computer News Fulltext

Dialog Coverage: 1989 - present, Full Text: 1989 - present

Full text articles from Computerworld and Network World.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

DIALOG Telecommunications Newsletters

Dialog Coverage: 1995 - present, Full Text: 1995 - present

Full text telecommunications newsletters that provide information on companies, products, markets, and technologies.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

DTIC STINET

DTIC Coverage: 1974 - present, Full Text: Dates - vary

DTIC scientific and technical papers, which cover telecommunications, satellites, imaging, and speech recognition.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

Ei Compendex

Dialog Coverage: 1970 - present, Full Text: - N/A

Questel Orbit Coverage: 1970 - present, Full Text: - N/A

STN Coverage: 1970 - present, Full Text: - N/A

Comprehensive database of engineering literature.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

Gale Group Computer DatabaseTM

Dialog Coverage: 1983 - present, Full Text: 1988 - present

Information about the computer, electronics, and telecommunications industries.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

Gale Group GlobalbaseTM

Dialog Coverage: 1986 - 2002, Full Text: - N/A

Worldwide coverage of companies, products, and industries with a primary focus on Europe.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

Gale Group New Product Announcements/Plus (NPA/Plus)

Dialog Coverage: 1985 - present, Full Text: 1985 - present

Full text press releases from all industries covering announcements related to products, with a focus on new products and services.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

Gale Group Newsletter DatabaseTM

Dialog Coverage: 1988 - present, Full Text: 1988 - present

Full text of specialized industry newsletters that provide information on companies, products, markets, and technologies.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

Gale Group PROMT

Dialog Coverage: 1990 - present, Full Text: 1990 - present

STN Coverage: 1978 - present, Full Text: 1978 - present

International coverage of companies, products, markets, and applied technologies for all industries.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

IBM Technical Disclosure Bulletin

EAST/WEST Coverage: 1958 - 1998, Full Text: -

Defensive disclosure database.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol).

IHS International Standards and Specifications

Dialog Coverage: - Current, Full Text: - N/A

This resource provides relevant data for standards. Irregular updates.

Inside Conferences

Dialog Coverage: 1993 - present, Full Text: - N/A

Contains details of all papers given at every congress, symposium, conference, exposition, workshop, and meeting received at the British Library Document Supply Centre.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

Inspec (The Database for Physics, Electronics and Computing)

Dialog Coverage: 1898 - present, Full Text: - N/A

Dialog DataStar Coverage: 1898 - present, Full Text: - N/A

Questel Orbit Coverage: 1969 - present, Full Text: - N/A

STN Coverage: 1969 - present, Full Text: - N/A

Inspec (The Database for Physics, Electronics and Computing) corresponds to the three Science Abstracts print publications: Physics Abstracts, Electrical and Electronics Abstracts, and Computer and Control Abstracts.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

Internet and Personal Computing Abstracts

EBSCO Coverage: 1980's - present, Full Text: - N/A

Literature related to personal computing products and developments in business, the Internet, the home, and all other applied areas.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

JICST-EPlus - Japanese Science & Technology

Dialog Coverage: 1985 - present, Full Text: - N/A

STN Coverage: 1985 - present, Full Text: - N/A

English citations and abstracts covering the literature published in Japan on all fields of science, technology, and medicine.

This resource provides relevant data on multiplex communications, crosstalk, circuit switching, mathematical techniques for compression, packet switching or transfer or routing, ATM, FDMA, CDMA, TDMA, SONET, CSMA, Channel assignment, TCP/IP, Wireless communications, QOS (quality of service), VOIP (voice over internet protocol), IPv6, IPv4, IETF (Internet Engineering Task Force), RFCs (Request for Comments), OFDM (orthogonal frequency division multiplexing).

MathSci

Dialog Coverage: 1910 - present, Full Text: - N/A

Coverage of mathematics, statistics, computer science, algorithms, and operations research.

This resource may provide relevant data on mathematical techniques for compression, packet switching or transfer or routing.

INTERNET SEARCH TOOLS

An Internet search should be considered when a search of the resources listed above fails to locate relevant prior art. A preliminary Internet search may be performed to obtain an overview of the technology, and to identify additional search terms and related product information.

Google TM

Google Coverage: - N/A, Full Text: - N/A

Internet search engine.

This resource provides relevant information for the following: tutorials, inventor papers and/or web sites, assignee or company product data or specifications, manuals, standards such as MPEGs, RFC's (Request for Comments), and ISO/IEC, etc. In addition, provides access to resources that can define the meaning of acronyms, or terms of art.

Public Comments on the Search Templates

Public comments on the search templates are invited. Comments should address the points enumerated in the Criteria for Evaluating Recommended Search Resources. Comments can be submitted via the Search Template Project e-mail link on each template page or by mail addressed to:

Mail Stop Patents Search Template Comments
Commissioner for Patents
P.O. Box 1450
Alexandria, VA 22313-1450
Electronic submission is preferred. The Office will respond to comments in writing.