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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 4452162 | Corner structure for cryogenic insulation system Cryogenic insulation system for containers for storage of cryogenic liquefied gases such as LNG (liquid natural gas), comprised of a low temperature resistant metal, preferably high nickel steel, membrane or liner supported by a layer of reinforced foam i... | 06/05/1984 |
| 4441498 | Planar receiver antenna coil for programmable electromedical pulse generator An implantable programmable pulse generator provides electrical stimulation signals to the heart of a patient. The operating parameters of the pulse generator, such as stimulation rate, refractory period duration, and operating mode are programmable by a ... | 04/10/1984 |
| 4416283 | Programming and telemetry system for biomedical implantable device A shunted coil telemetry transponder in an implant is employed as a magnetic pulse transducer for receiving externally transmitted data. Additional circuitry reproduces the pulse waveform from inductive spikes and interfaces a programming data input with ... | 11/22/1983 |
| 4361153 | Implant telemetry system An externally generated myriametric frequency magnetic carrier signal is resonantly reflected by a tuned coil in an implant. The lagging phase angle of the reflected signal is modulated at very low power by varying the impedance across the tuned coil in a... | 11/30/1982 |
| 4281664 | Implantable telemetry transmission system for analog and digital data An improved telemetry transmission system for transmitting electrocardiographic information, indications of the occurrence of the pacing pulse and for transmitting digitally encoded information from an implanted pacemaker, an implanted drug dispensing dev... | 08/04/1981 |
| 4236523 | Frequency to voltage converter for cardiac communication system An accurate frequency to voltage converter for cardiac telemetry systems, in which converter charges are stored in response to selected intervals proportional to the period of an alternating input signal. Linearization of the output voltage as a function ... | 12/02/1980 |
| 4223679 | Telemetry means for tissue stimulator system A telemetry system for use in a living tissue stimulator system in which an externally located oscillator is controlled by impedance changes in an impedance reflecting circuit located in an implantable tissue stimulator. In a first embodiment the impedanc... | 09/23/1980 |
| 4026305 | Low current telemetry system for cardiac pacers A system for telemetering the performance of an implanted cardiac pacer incorporating a low power, low voltage, frequency-voltage sensitive pulse generator which supplies a pulse-interval-modulated telemetry output and includes an astable complementary mu... | 05/31/1977 |
