公开(公告)号：DE2743957A1

公开(公告)日：1978-04-06

申请号：DE2743957

申请日：1977-09-29

Applicant: ESB INC

Inventor： JOHNSON ROBERT W

IPC: H02J9/06

Abstract: A system for rapidly substituting one source of AC power for another. A solid-state gated electronic valve is coupled in circuit with a principal power source or "line" and the current through the valve is monitored. Line voltage is also monitored and a timing signal produced to keep the system in synchronism with the principal power source. When the source voltage decreases or changes abruptly, or if its phase drifts unacceptably, the difference detected between the source and a reference effects the termination of valve gating signals, and allows the application of synchronous enabling signals to a standby power source. If the solid-state valve is non-conducting the standby source starts immediately in synchronism with the previously-supplied load voltage. If current is flowing in the valve, however, a commutating signal is produced which overrides the synchronous standby enabling signal to energize the standby power source with the proper polarity to extinguish current through the valve. When the current decreases below the holding current value the standby source is caused to enter the synchronous mode.

公开(公告)号：CA1002610A

公开(公告)日：1976-12-28

申请号：CA250671

申请日：1976-04-21

Applicant: ESB INC

Inventor： MALCHMAN FRANKLIN L ,  RADDI WILLIAM J ,  JOHNSON ROBERT W

IPC: A61B5/00 ,  A61B5/0402 ,  A61N1/37 ,  G08C19/00

Abstract: A monitor apparatus for simultaneously monitoring via a telephone communication link electrocardiographic signals of a patient produced as a result of the heart function of the patient, and electrical artifact signals produced as a result of the electrical output of a heart pacer artificially stimulating the heart of the patient. The monitor apparatus includes a transducer adapted to sense both the electrocardiographic signals and the electrical artifact signals of a patient and to process the sensed signals to transmittable signals for transmission over the telephone communication link. The monitor apparatus also includes a receiver adapted to receive the signals transmitted over the telephone communication link and to process the received signals for providing a visual display to an observer of information indicative of the repetition rate of the electrical artifact signals and a recorded read-out indicative of the electrocardiographic signals along with the artifact signals and the time occurrence relationship of the artifact signals with respect to the electrocardiographic signals.

公开(公告)号：CA984467A

公开(公告)日：1976-02-24

申请号：CA128279

申请日：1971-11-22

Applicant: ESB INC

Inventor： RADDI WILLIAM J ,  SMITHMYER JOSEPH W ,  JOHNSON ROBERT W

IPC: A61N1/362 ,  A61N1/378 ,  H03K3/26 ,  H03K3/30

公开(公告)号：CA1002611A

公开(公告)日：1976-12-28

申请号：CA250672

申请日：1976-04-21

Applicant: ESB INC

Inventor： MALCHMAN FRANKLIN L ,  RADDI WILLIAM J ,  JOHNSON ROBERT W

IPC: A61B5/00 ,  A61B5/0402 ,  A61N1/37 ,  G08C19/00

Abstract: A monitor apparatus for simultaneously monitoring via a telephone communication link electrocardiographic signals of a patient produced as a result of the heart function of the patient, and electrical artifact signals produced as a result of the electrical output of a heart pacer artificially stimulating the heart of the patient. The monitor apparatus includes a transducer adapted to sense both the electrocardiographic signals and the electrical artifact signals of a patient and to process the sensed signals to transmittable signals for transmission over the telephone communication link. The monitor apparatus also includes a receiver adapted to receive the signals transmitted over the telephone communication link and to process the received signals for providing a visual display to an observer of information indicative of the repetition rate of the electrical artifact signals and a recorded read-out indicative of the electrocardiographic signals along with the artifact signals and the time occurrence relationship of the artifact signals with respect to the electrocardiographic signals.

公开(公告)号：CA1090883A

公开(公告)日：1980-12-02

申请号：CA285640

申请日：1977-08-29

Applicant: ESB INC

Inventor： JOHNSON ROBERT W

IPC: H02J9/06

Abstract: A system for rapidly substituting one source of AC power for another is disclosed. A solid-state gated electronic valve is coupled in circuit with a principal power source or "line" and the current through the valve is monitored. Line voltage is also monitored and a timing signal produced to keep the system in synchronism with the principal power source. When the source voltage decreases or changes abruptly, or if its phase drifts unacceptably, the difference detected between the source and a reference effects the termination of valve gating signals, and allows the application of synchronous enabling signals to a standby power source. If the solid-state valve is non-conducting the standby source starts immediately in synchronism with the previously-supplied load voltage. If current is flowing in the valve, however, a commutating signal is produced which overrides the synchronous standby enabling signal to energize the standby power source with the proper polarity to extinguish current through the valve. When the current decreases below the holding current value the standby source is caused to enter the synchronous mode.

公开(公告)号：CA995765A

公开(公告)日：1976-08-24

申请号：CA170144

申请日：1973-05-01

Applicant: ESB INC

Inventor： RADDI WILLIAM J ,  JOHNSON ROBERT W

IPC: A61B5/308

Abstract: Apparatus is provided for sensing physiological potentials of a living body. There is provided a first band for at least partially encircling a part of the living body and having a first electrode mounted thereon. The first electrode is adapted for connection to an instrument for amplifying the physiological potentials of the living body. A second band is provided for at least partially encirling another part of the living body and has a second and a third electrode located thereon. The second and third electrodes each are adapted for connection to the instrument for amplifying the physiological potentials of the living body.

公开(公告)号：CA997002A

公开(公告)日：1976-09-14

申请号：CA171422

申请日：1973-05-15

Applicant: ESB INC

Inventor： MALCHMAN FRANKLIN L ,  RADDI WILLIAM J ,  JOHNSON ROBERT W

IPC: A61B5/00 ,  A61B5/0402 ,  A61N1/37 ,  G08C19/00

Abstract: A monitor apparatus for simultaneously monitoring via a telephone communication link electrocardiographic signals of a patient produced as a result of the heart function of the patient, and electrical artifact signals produced as a result of the electrical output of a heart pacer artificially stimulating the heart of the patient. The monitor apparatus includes a transducer adapted to sense both the electrocardiographic signals and the electrical artifact signals of a patient and to process the sensed signals to transmittable signals for transmission over the telephone communication link. The monitor apparatus also includes a receiver adapted to receive the signals transmitted over the telephone communication link and to process the received signals for providing a visual display to an observer of information indicative of the repetition rate of the electrical artifact signals and a recorded read-out indicative of the electrocardiographic signals along with the artifact signals and the time occurrence relationship of the artifact signals with respect to the electrocardiographic signals.