Abstract: A method for maintaining the states of a receiver during the silent line state of a network device operating in a low power link suspend mode is presented. Accordingly, a method of freezing the states of the equalizer and keeping the receiver clock locked to a frequency that is approximately equal to that of the input data while providing for rapid adjustment to the phase and thus recovery of the input data is presented. During Silent Line State (SLS), the receiver states are frozen using methods that avoid parasitic decay. Also, the receive clock phase lock loop is locked onto the local transmit clock since the local transmit clock has a frequency approximating the incoming data frequency. During the SLS, the transmitter of the remote network device may have been turned off to conserve power therefore the receiver has no way of immediately knowing the phase of an incoming data.

Abstract: A method and apparatus for transparent implementation of link-suspend capabilities in network devices is presented. Accordingly, a new generation of network devices capable of operating in both the full power operational mode of prior art network devices, and a low power “link-suspend” operational mode are presented. The low power “link-suspend” (LS) mode reduces the power consumption of a LAN communications link at the physical layer by eliminating the need to transmit continuous standard idles to maintain link between two linked partners. In the LS mode, a low duty cycle “link-suspend-packet” (LSP) is transmitted between periods of silent line state (SLS). During the SLS, which is a non-data transmission period, the transmitter may be turned off to conserve power. The transmitter power is turned back on when it is time to transmit LSPs or data.

Abstract: A method for initializing a link suspend (LS) device for optimum receive recovery is presented. Accordingly, a method for negotiating link parameters needed to facilitate rapid recovery of the input data from a silent line state is presented. During Silent Line State (SLS), the receiver has no knowledge of the state of the link partner PHY because the transmitter of the remote network device may have been turned off to conserve power therefore the receiver would have no way of immediately knowing the scrambler seed of an incoming data. Determining the scrambler seed may be computation intensive and may result in losing some of the incoming data if not immediately determined. Thus, in order to prevent loss of data, LS devices pass scrambler seed and other link parameters during Next Page Auto-Negotiation so that the receiver's descrambler may immediately start recovering the incoming data without need to first determine the scrambler seed.

Abstract: A multi-communication rate switching physical device for a port of a mixed communication rate Ethernet repeater network. The present invention includes a physical device for recovering bits from a wire connection (e.g., fiber, twisted pair, etc.) that is coupled to computer system adapter. The physical device can be implemented on a single chip integrated within an Ethernet repeater hub within each hub port. The physical device chip of the invention includes a front end multiplexer coupled to channel information between a 10 Base T physical device circuit and a 100 Base T physical device circuit, depending on the result of an auto-negotiation circuit also on the physical device chip. The physical device chip also advantageously employs a second, back end multiplexer, that is coupled to channel data between either the 10 Base T physical device circuit or the 100 Base T physical device circuit and one of a multiple of media independent interfaces (MIIs).

Abstract: The machine comprises a forming station 18 for receiving a piece of fabric 28 which is shaped at the forming station by a cutter 26. A plurality of lay up stations 40, 42 is provided and a roller 48 is used to carry the shaped fabric 28a from the forming station 18 to one or other of the lay-up stations 40,42. The roller 48 lays the shaped fabric in position at the lay-up station to form part of a laminate at that station. The process is repeated to produce a laminate at the remaining lay-up station. A pick-up device 34 is provided for picking up scrap material left as a peripheral band 36 around the shaped fabric 28a.

Abstract: A CPU or microprocessor which includes a general purpose CPU component, such as an X86 core, and also includes a DSP core. In a first embodiment, the CPU receives general purpose instructions, such as X86 instructions, wherein certain X86 instruction sequences implement DSP functions. The CPU includes a processor mode register which is written with one or more processor mode bits to indicate whether an instruction sequence implements a DSP function. The CPU also includes an intelligent DSP function decoder or preprocessor which examines the processor mode bits and determines if a DSP function is being executed. If a DSP function is being implemented by an instruction sequence, the DSP function decoder converts or maps the opcodes to a DSP macro instruction that is provided to the DSP core. The DSP core executes one or more DSP instructions to implement the desired DSP function in response to the macro instruction.

Abstract: A CPU or microprocessor which includes a general purpose CPU component, such as an X86 core, and also includes a DSP core. In a first embodiment, the CPU receives general purpose instructions, such as X86 instructions, wherein certain X86 instruction sequences implement DSP functions. The CPU includes a processor mode register which is written with one or more processor mode bits to indicate whether an instruction sequence implements a DSP function. The CPU also includes an intelligent DSP function decoder or preprocessor which examines the processor mode bits and determines if a DSP function is being executed. If a DSP function is being implemented by an instruction sequence, the DSP function decoder converts or maps the opcodes to a DSP macro instruction that is provided to the DSP core. The DSP core executes one or more DSP instructions to implement the desired DSP function in response to the macro instruction.

Abstract: A multi-communication rate switching physical device for a port of a mixed communication rate Ethernet repeater network. The present invention includes a physical device for recovering bits from a wire connection (e.g., fiber, twisted pair, etc.) that is coupled to computer system adapter. The physical device can be implemented on a single chip integrated within an Ethernet repeater hub within each hub port. The physical device chip of the invention includes a front end multiplexer coupled to channel information between a 10 Base T physical device circuit and a 100 Base T physical device circuit, depending on the result of an auto-negotiation circuit also on the physical device chip. The physical device chip also advantageously employs a second, back end multiplexer, that is coupled to channel data between either the 10 Base T physical device circuit or the 100 Base T physical device circuit and one of a multiple of media independent interfaces (MIIs).

Abstract: An electrical power supply and controller for supplying electrical power from a common platform in a plurality of distinct electrical waveforms, including voltages, and frequency, and to a plurality of distinct loads including distinct motor loads, and controlling alternatively the speed and torque of these motor loads. The power supply and controller of this invention automatically accepts and adjusts to an electrical input across a wide range of electrical waveforms, including voltage and frequency, and includes an interface for accepting a plurality of distinct computer programs for controlling each load type. The electrical power supply and controller supplies electrical power to the plurality of distinct load modules, accepts the plurality of distinct electrical inputs, and accepts the plurality of distinct computer programs without any modification to the electrical power supply and controller itself.

Abstract: A carbon dioxide sensitive material including a polymer binder, a plasticiser, a lipophilic organic quaternary cation, an indicator dye anion and an aromatic alcohol in such concentration that the material changes color in accordance with the concentration of carbon dioxide.

Abstract: A communications device is presented which is configured to provide selective signal processing at a "plain old telephone service" (POTS) interface, an ISDN U interface, or an ISDN S/T interface. A first POTS connector allows the communications device to be connected to an analog POTS telephone line. A second ISDN U connector allows the communications device to be connected to an ISDN network at an ISDN U interface point. A third ISDN S/T connector allows the communications device to be connected to an ISDN network at an ISDN S/T interface point.

Abstract: A microprocessor including an instruction decode unit configured to detect a DSP call instruction is provided. The DSP call instruction is indicative of a call to a subroutine which performs a DSP function. Detected DSP call instructions are routed to a DSP which executes a routine performing the corresponding function. Subsequent to the DSP completing execution of the routine, the microprocessor continues execution at the instruction subsequent to the DSP call instruction. If a DSP is not included in the computer system, the DSP call instruction is executed in a manner similar to a subroutine call instruction. The microprocessor subsequently executes a corresponding routine which performs the DSP function.

Abstract: The detector which provides a detectable indication of the presence of an elevated proportion of carbon dioxide compared to that in normal ambient air, comprises a substrate coated by an intimate mixture of a transparent plasticised polymer vehicle, and an indicator material which undergoes a color change on exposure to carbon dioxide. The indicator material comprises an anionic fluorimetric dye and a lipophilic organic quaternary cation.

Abstract: The monitor which provides a detectable indication of the presence of an elevated proportion of carbon dioxide compared to that in normal ambient air, comprises a substrate coated by an intimate mixture of a transparent plasticised polymer vehicle, and an indicator material which undergoes a colour change on exposure to carbon dioxide. The indicator material comprises a salt of an indicator anion and a lipophilic organic quaternary cation. The device can be used to provide an indication of correct intubation of the trachea of a patient.