Abstract: A control server facilitates communication between a tool server hosting an instance of a software tool and a client device employed by a user of the software tool. The client device initially contacts the control server to request the use of the software tool. The control server then arranges for a separate computer to be configured as a tool server that can provide remote access to an instance of the software tool. The control server may provide usage information to the tool server that will control how the software tool may be used. The control server may also provide connection information to the client device, which the client device then can use to establish a connection with the tool server. Using the connection information, the client device then establishes a remote connection with the tool server, allowing the user of the client device to use the software tool hosted on the tool server through the remote connection.

Abstract: A perfusion system apparatus includes a subject simulator for simulating a subject. The subject simulator includes a circulatory system having an inlet line for receiving fluid from the perfusion system, an outlet line for transferring fluid to the perfusion system, at least one sensor for sensing at least one fluid property and at least one control device coupled to at least one of the inlet line and the outlet line. The control device manipulates the at least on fluid property based at least partially on signals from the at least one sensor, to thereby simulate a least one of compliance and resistance of the simulated subject.

Abstract: A perfusion system apparatus includes a subject simulator for simulating a subject. The subject simulator includes a circulatory system having an inlet line for receiving fluid from the perfusion system, an outlet line for transferring fluid to the perfusion system, at least one sensor for sensing at least one fluid property and at least one control device coupled to at least one of the inlet line and the outlet line. The control device manipulates the at least on fluid property based at least partially on signals from the at least one sensor, to thereby simulate a least one of compliance and resistance of the simulated subject.

Abstract: A perfusion system apparatus includes a subject simulator for simulating a subject. The subject simulator includes a circulatory system having an inlet line for receiving fluid from the perfusion system, an outlet line for transferring fluid to the perfusion system, at least one sensor for sensing at least one fluid property and at least one control device coupled to at least one of the inlet line and the outlet line. The control device manipulates the at least on fluid property based at least partially on signals from the at least one sensor, to thereby simulate a least one of compliance and resistance of the simulated subject.

Abstract: Apparatus use with a perfusion system, the apparatus including a subject simulator for simulating subject. The subject simulator includes a circulatory system having an inlet line for receiving fluid from the perfusion system, an outlet line for transferring fluid to the perfusion system, at least on sensor for sensing at least one fluid property and at least one control device coupled to at least one of the inlet line and the outlet line. In use this, allows the control device to manipulate the at least on fluid property based at least partially on signals from the at least one sensor, to thereby simulate a least one of compliance and resistance of the simulated subject.

Abstract: A control server facilitates communication between a tool server hosting an instance of a software tool and a client device employed by a user of the software tool. The client device initially contacts the control server to request the use of the software tool. The control server then arranges for a separate computer to be configured as a tool server that can provide remote access to an instance of the software tool. The control server may provide usage information to the tool server that will control how the software tool may be used. The control server may also provide connection information to the client device, which the client device then can use to establish a connection with the tool server. Using the connection information, the client device then establishes a remote connection with the tool server, allowing the user of the client device to use the software tool hosted on the tool server through the remote connection.

Abstract: Apparatus use with a perfusion system, the apparatus including a subject simulator for simulating subject. The subject simulator includes a circulatory system having an inlet line for receiving fluid from the perfusion system, an outlet line for transferring fluid to the perfusion system, at least on sensor for sensing at least one fluid property and at least one control device coupled to at least one of the inlet line and the outlet line. In use this, allows the control device to manipulate the at least on fluid property based at least partially on signals from the at least one sensor, to thereby simulate a least one of compliance and resistance of the simulated subject.

Abstract: A unique, fully integrated, fully programmable, and highly flexible sound distribution system and methodology for providing masking sound, background music, and paging capabilities in up to eight zones of a building or space is provided. The methodology embodied in the system includes internal masking sounds that are uniquely pre-filtered to provide efficient and effective masking of distracting sounds within selectable zones of the space with a minimum masking sound dB sound level and with a pleasant sounding and non-annoying masking sound. The system also incorporates the capacity to be controlled from a remote or local telephone to adjust the volume level in any zone serviced by the system by issuing appropriate DTMF codes from the telephone's keypad. Unique bi-tone diagnostic functions are provided for assuring that the entire system is correctly wired and installed and for troubleshooting operational anomalies.

Abstract: A compact sound processing system and method for use with a plurality of sound radiators. A microcontroller accepts a plurality of user-selected speaker equalization and space equalization settings and receives a paging control signal from a telephone interface. An analog mixer combines music signal inputs and a paging signal. A digital signal processor generates and filters masking noise, and processes the masking noise and combined music and paging signals based on user-selectable settings for distribution to the sound radiators. An audio amplifier modulates and amplifies the output signal from the digital signal processor, and delivers the output signal to the sound radiators via a transformer in defined zones. The sound radiators can be flat panel sound radiators or conventional type speakers. A masking filter used with the masking noise generator can be programmed to shape the virtual random noise generated by decreasing the noise at a constant rate over the frequency range of human speech.

Abstract: A unique, fully integrated, fully programmable, and highly flexible sound distribution system and methodology for providing masking sound, background music, and paging capabilities in up to eight zones of a building or space is provided. The methodology embodied in the system includes internal masking sounds that are uniquely pre-filtered to provide efficient and effective masking of distracting sounds within selectable zones of the space with a minimum masking sound dB sound level and with a pleasant sounding and non-annoying masking sound. The system also incorporates the capacity to be controlled from a remote or local telephone to adjust the volume level in any zone serviced by the system by issuing appropriate DTMF codes from the telephone's keypad. Unique bi-tone diagnostic functions are provided for assuring that the entire system is correctly wired and installed and for troubleshooting operational anomalies.

Abstract: A unique, fully integrated, fully programmable, and highly flexible sound distribution system and methodology for providing masking sound, background music, and paging capabilities in up to eight zones of a building or space is provided. The methodology embodied in the system includes internal masking sounds that are uniquely pre-filtered to provide efficient and effective masking of distracting sounds within selectable zones of the space with a minimum masking sound dB sound level and with a pleasant sounding and non-annoying masking sound. The system also incorporates the capacity to be controlled from a remote or local telephone to adjust the volume level in any zone serviced by the system by issuing appropriate DTMF codes from the telephone's keypad. Unique bi-tone diagnostic functions are provided for assuring that the entire system is correctly wired and installed and for troubleshooting operational anomalies.

Abstract: A unique, fully integrated, fully programmable, and highly flexible sound distribution system and methodology for providing masking sound, background music, and paging capabilities in up to eight zones of a building or space is provided. The methodology embodied in the system includes internal masking sounds that are uniquely pre-filtered to provide efficient and effective masking of distracting sounds within selectable zones of the space with a minimum masking sound dB sound level and with a pleasant sounding and non-annoying masking sound. The system also incorporates the capacity to be controlled from a remote or local telephone to adjust the volume level in any zone serviced by the system by issuing appropriate DTMF codes from the telephone's keypad. Unique bi-tone diagnostic functions are provided for assuring that the entire system is correctly wired and installed and for troubleshooting operational anomalies.

Abstract: A unique, fully integrated, fully programmable, and highly flexible sound distribution system and methodology for providing masking sound, background music, and paging capabilities in up to eight zones of a building or space is provided. The methodology embodied in the system includes internal masking sounds that are uniquely pre-filtered to provide efficient and effective masking of distracting sounds within selectable zones of the space with a minimum masking sound dB sound level and with a pleasant sounding and non-annoying masking sound. The system also incorporates the capacity to be controlled from a remote or local telephone to adjust the volume level in any zone serviced by the system by issuing appropriate DTMF codes from the telephone's keypad. Unique bi-tone diagnostic functions are provided for assuring that the entire system is correctly wired and installed and for troubleshooting operational anomalies.