Amplitude compression or expansion

Channel assignment techniques

Adaptive selection of channel assignment technique

Arbitration for access to a channel

Carrier sense multiple access (csma)

Arbitration for access between contending stations

Using weighted back-off timing

Using a star coupler

Combined time and frequency assignment

Combining or distributing information via code word channels using multiple access techniques (e.g., cdma)

Combining or distributing information via time channels using multiple access technique (e.g., tdma)

Using channel reservation

With priority resolution

Details of circuit or interface for connecting user to the network

Messages addressed to multiple destinations

Only active channels transmitted

Concentrator

Tasi (time assignment speech interpolation)

Polling

Passing a signal identifying the idle or busy state of a channel (e.g., token passing)

Initialization or reinitialization of network

On bus

On ring or loop

Having multiple idle or busy signals simultaneously on the network

Idle or busy signal erasure or frame erasure

Including priority resolution

Initialization or reinitialization of network

Using a separate control line or bus for access control

Control line is used to request or reserve access

Dual bus dynamic queuing (i.e., dqdb)

Using time slots

Arbitration for access between contending stations

Having indication of idle or busy state of time slot

On ring or loop network

Communication over free space

Combining or distributing information via code word channels using multiple access techniques (e.g., cdma)

Combining or distributing information via frequency channels

Multiple access (e.g., fdma)

Combining or distributing information via time channels

Multiple access (e.g., tdma)

Channel reservation scheme

Polling

Synchronization

Using messages having an address field as header

Having a plurality of contiguous regions served by respective fixed stations

Channel assignment

Combining or distributing information via code word channels using multiple access techniques (e.g., cdma)

Combining or distributing information via time channels

Multiple access (e.g., tdma)

Hand-off control

Based upon a particular signal quality measurement

Signal quality determined by bit error rate

Using multiple antennas at a station

Having both time and frequency assignment

Contiguous regions interconnected by a local area network

Message addressed to multiple destinations

Plural usage of common antenna

Portable address responsive receiver

Using time division multiplexing

Repeater

Airborne or space satellite repeater

Combining or distributing information via time channels

Including noise compensation

Including power control

Multiple access (e.g., fdma)

Code division (cdma)

Including onboard switching

Time division (tdma)

Channel reservation scheme

Including onboard switching

Synchronization

In a trunking system

Signaling for performing battery saving

Using atm as a wireles protocol

Having a plurality of contiguous regions served by respective fixed stations

Using trunking

Channel assignment

Communication techniques for information carried in plural channels

Adaptive

Assignment of variable bandwidth or time period for transmission or reception

Byte length

Converting between protocols

Conversion between signaling protocols

Frame length

Message having an address header

Processing multiple layer protocols

Transmission of a single message having multiple packets

Address transmitted

Assembly or disassembly of messages having address headers

Byte assembly and formatting

Combined time division and frequency division

Combining or distributing information via code word channels

Combining or distributing information via frequency channels

Bus (distributed stations)

Combined communication of diverse information types

Combined voice and data transmission

Data over voice

Data under voice

Digital analysis or synthesis of a group

Multiple frequency translations

Particular carrier generation

Pilot

Repeater

Signaling

Subscriber carrier

Connecting filters

Program distribution

Combined communication of diverse information types

Using angle modulation

Using particular filtering technique

Combining or distributing information via time channels

Conversion of rate from a single input to a single output

Demultiplexing single input channel to plural output channels

Different rate output channels

Same rate output channels

Demultiplexing single signal into plural parallel channels (e.g., parallel transmission for increasing transmission speed)

Information superimposed on other information

Magnetic core for switching or storage

Multiplexer or distributor and technique for handling low level input signal

Multiplexer or distributor using electron beam switching device

Multiplexer or distributor using pulse amplitude modulation

Multiplexing combined with demultiplexing

Multiplexing plural input channels to a common output channel

Plural input channels of different rates to a single common rate output channel

Multiple levels of multiplexing to form a multiplex hierarchy

Plural input channels of same rate to a single common rate output channel

Multiple levels of multiplexing to form a multiplex hierarchy

Pilot

Polarity multiplex

Repeater

Bus extenders

Signaling (ancillary to main information)

Digital tone detection

Digital tone signal generation

Inserted in gaps in main information

Superimposed or modulated on principal information

Using a dedicated signaling channel (i.e., d-channel)

Using bit robbing

Staircase wave

Synchronizing

Adjusting for phase or jitter

Including delay device

Delay based upon propagation delay time

Provide plural phases of a clocking signal

Mutual (reciprocal) synchronization

Transmission time into time slots adjusted based upon propagation delay time

Pulse stuffing or deletion

Frame or bit stream justification

Reference indication consists of a gap

Unique synchronization pulse

Using synchronization information contained in a frame

Synchronization information is distributed over multiple frames

Using redundant synchronization words

Synchronization information is distributed within a frame

Plural synchronization words

Unique synchronization word or unique bit sequence

Pseudo-random

Time compression or expansion

Transmission bandwidth conservation

Crosstalk suppression

Data flow congestion prevention or control

Control of data admission to the network

Based on data flow rate measurement

Measurement of the average data flow rate

Measurement of the peak data flow rate

End-to-end flow control

Traffic shaping

Flow control of data transmission through a network

Congestion based rerouting

Including signaling between network elements

Using oam (operation, administration and maintenance) cells

Using rm (resource management) cells

Least cost or minimum delay routing

Atm least cost routing

Using leaky bucket technique

Using antijabber circuit

In a star coupler

Diagnostic testing (other than synchronization)

Determination of communication parameters

Measurement of flow rate of messages having an address header

Fault detection

Of a local area network

Of a repeater system

Of a switching system

Loopback

Of a repeater

Having a dedicated test line or channel

Of a switching system

Having dedicated test line or channel

Path check

Using oam (operation, administration and maintenance) cells

Diplex

Duplex

Communication over free space

Duplex repeaters

Frequency division

Time division

Transmit/receive interaction control

Convertible to half duplex

Duplex repeaters or extenders

Frequency division

Time division

Transmit/receive interaction control

Artificial line

Bridge

Differential

Echo suppression or cancellation

Disabling or inhibiting

Having residual echo cancellation or suppression

Using a particular adaptive filter

Using a transversal filter

Using a training sequence

Using an attenuator

Fault recovery

Bypass an inoperative channel

In a repeater system

Using a spare channel

Spare channel

Bypass an inoperative station

In a ring or loop network

Using a secondary ring or loop

Loopback of signals on the secondary ring or loop

Bypass an inoperative switch or inoperative element of a switching system

Packet switching system or element

Standby switch

Standby switch

Generalized orthogonal or special mathematical techniques

Fourier transform

Level multiplex

Particular set of orthogonal functions

Walsh functions

Plural diverse modulation techniques

Pulse width and pulse position modulation

Quadrature carriers

Having a signaling constellation

Local area network

Bridge (e.g., brouter, bus extender, etc.)

Carrier sense multiple access (e.g., ethernet, 10base-t)

Token ring

Low speed asynchronous data system (e.g., teletypewriter service)

Channels separated in frequency

Data assembly or formatting

Data switching exchange

Rotary distributor

Synchronizer

Start-stop

Nonmechanical

Transmitting time of transition and logic state

Miscellaneous

Multiplexer/demultiplexer

Network configuration determination

In a bus system

In a ring system

Using a particular learning algorithm or technique

Spanning tree

Packet communications

Wireless or radio

Pathfinding or routing

Pathfinding or routing

Combined circuit switching and packet switching

Routing circuit switched traffic through a packet switching network

Routing packets through a circuit switching network

Switching network having common elements to handle both circuit switched traffic and packet switched traffic

Switching network having separate elements to handle circuit switched traffic and packet switched traffic

Fdm switching

Store and forward

Particular storing and queuing arrangement

Switching a message which includes an address header

Switching a message which includes an address header

Centralized switching

Having a signaling feature

Including a bus for interconnecting inputs and outputs

Including a ring or loop for interconnecting inputs and outputs

Star configuration

Having a plurality of nodes performing distributed switching

Bridge or gateway between networks

Bridge between bus systems

At least one bus is a ring network

Ring or loop forms backbone for interconnecting other networks

The other networks are ring or loop networks

Employing logical addressing for routing (e.g., vp or vc)

Having a signaling feature

Interconnected star couplers

Nodes interconnected in hierarchy to form a tree

Plurality of rings or loops to form a mesh network

Including sorting and merging networks

Input or output circuit, per se (i.e., line interface)

For connecting plural subscribers to a network (i.e., network termination)

Subscribers connected to input or output circuit by a common bus

Message transmitted using fixed length packets (e.g., atm cells)

Adapting detail (e.g., converting to/from atm, or detail of atm adaption layers (aals))

Adapting connection-oriented variable bit rate (vbr) data (e.g., mpeg/hdtv packet video/audio over atm or using aal2)

Adapting connectionless variable bit rate (vbr) data (e.g., adapting 802.x, or using aal5)

Adapting constant bit rate (cbr) data (e.g., voice, or narrow band isdn over atm, or using aal1)

Detail of clock recovery or synchronization

Adapting frame relay/x.25 data (e.g., using aal 3/4)

Assigning period of time for information to be transmitted (e.g., scheduling)

Based on bandwidth allocation (e.g., weighted round robin)

Based on priority

Based on service category (e.g., cbr, vbr, ubr, or abr)

Centralized switching

Employing logical addressing for routing (e.g., vp or vc)

Connection identifier assignment

Including routing table

Employing particular searching function (e.g., hashing, alternate, re-routing)

Connection set-up/disconnect (e.g., connection admission control)

Based on traffic contract (including using setup messages, qos, delay/bandwidth requirement)

Distributed switching

Employing logical addressing for routing (e.g., vp or vc)

Having detail of switch memory reading/writing

Having central (e.g., common) storage

Having input or output storage or both

Multiprotocol network

Address resolution (e.g., arp, or nhrp)

Emulated lan (lane/elan/vlan, e.g., ethernet or token ring legacy lan over a single atm network/lan)

Internet protocol (including tcp/ip or udp/ip) over fixed length packet network (e.g., ip over atm)

Utilizing a plurality of atm networks (e.g., mpoa, sonet, or sdh)

Processing of address header for routing, per se

Address concatenation

Queuing arrangement

Having both input and output queuing

Contention resolution for output

Having input queuing only

Contention resolution for output

Having output queuing only

Contention resolution for output

Replicate messages for multiple destination distribution

Sequencing or resequencing of packets to insure proper output sequence order

Space switching

Switching input signals having different aggregate bit rates

Through a circuit switch

Input or output circuit, per se (i.e., line interface)

Particular switching network arrangement

Multiplanar switch

Multistage switch

Switching control

Bus switch

Having details of control storage arrangement

Having plural buses

Separate transmit and receive buses

Folded network

Having a supervisory signaling feature

Having a separate signaling network

Having details of control storage arrangement

Control storage addressing

Data memory addressing

Having time and space switches

Having details of control storage arrangement

Having space switch as intermediate stage (e.g., t-s-t, t-s-s, or s-s-t)

Having details of control storage arrangement

Having supervisory signaling

Having time switch as intermediate stage (e.g., s-t-s or t-t-s)

Including serial-parallel or parallel-serial conversion for input or output

For distribution to a multiplanar switching network

Having details of control storage arrangement

Space switch, per se (e.g., s or s-s)

Time switch, per se (e.g., t or t-t)

Having details of control storage arrangement

Data memory addressing

Having supervisory signaling

Time slot interchange, per se

Switching input signals having different aggregate bit rates

Phantom

Phase modulation

Pulse position modulation

Pulse width (pulse duration) modulation

Quadruplex

Duplex diplex

Repeater

Rate converter

Resonant transfer substitutes

Resonant transfer techniques

Sextuplex

Simultaneous telegraphy and telephony

Special services

Conferencing

Conferee signals combined or distributed via time channels

Particular technique for combining diverse information types

Using plural diverse channel communications with a dedicated signaling channel (i.e., isdn)

Using summation of conferee signals

Digital summation

Including cancellation of certain signals

Including cancellation of certain signals

Technique for setting up a conference call

Operator setup of the conference

Distribution of signal to multiple agent stations

Special feature of multiplex telephone terminal

Time division cellular radio systems

Trasmultiplexers

Wide area network

Packet switching

Osi compliant network

Asynchronous transfer mode (atm)

Fiber data distribution interface (fddi)

Integrated services digital network (isdn)

Synchronous optical network (sonet)