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Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 7278375 | Animal deterrent apparatus for mounting to a culvert An automated animal deterrent apparatus for mounting to a culvert, the apparatus includes attached weatherproof housings to protect its other components; a passive infrared sensor to detect pest animals within a detection zone; a siren to produce noise; a scent rele... | 10/09/2007 |
| 7060969 | Rotating machine having rotation sensors Three rotation sensors circumferentially arranged at 90 degree intervals in a disk code wheel attached to a motor's output shaft respectively output a signal corresponding the rotational speed of the wheel. An error component of one period (one-periodic component) o... | 06/13/2006 |
| 6906700 | 3D controller with vibration A hand operated controller or converter structured for allowing hand inputs to be converted or translated into electrical outputs, the controller structured with a plate or platform moveable relative to a base or housing about two mutually perpendicular axes general... | 06/14/2005 |
| 6014408 | PN code generating circuit and terminal unit A Pseudorandom Noise (PN) code generating circuit includes a shift register, an adding circuit for exclusive-ORing tap output data of the shift register and feed-back output data of the shift register, selectors disposed as upstream circuits of each regis... | 01/11/2000 |
| 5790066 | Remote control transmission circuit A remote control transmission circuit for generating a multicarrier under control of a single microcomputer. This transmission circuit is arranged so as to allow reduction of the number of the program commands and making it easy to perform a different pro... | 08/04/1998 |
| 5532695 | Power of two length pseudorandom noise sequence generator A mobile communication method is disclosed, and particularly a power of two length pseudorandom noise sequence generator is disclosed, in which a pseudorandom noise code sequence is generated to use it for a direct sequence spreading of communication sign... | 07/02/1996 |
| 5233355 | Position transducer An absolute position transducer (encoder) comprising an incremental encoder having a coded disk connected stably to a shaft, and connected to a sensor for emitting a signal for each complete turn of the disk The incremental encoder produces a first and se... | 08/03/1993 |
| 4484180 | Switch condition indicator The identification of the last-actuated of a plurality of parallel connected switches is provided by energizing a light source associated with the last-actuated switch and by providing a coded output signal which identifies the switch. The identification ... | 11/20/1984 |
| 4447798 | Processor select switch An n-position selector switch includes a binary counter which is clocked in response to a user actuated push-button type input. The counter's output is fed into a decoder, the output of which drives a visual display indicating the selected switch position... | 05/08/1984 |
| 4408182 | Lighting and morse code signaling device A lighting and signaling device is provided which is capable of both lighting and signaling intermittent signals such as Morse code signals. The lighting and signaling device has a switch for selecting among an unlit mode, a continuous lighting mode, and ... | 10/04/1983 |
| 4164666 | Electronic apparatus using complementary MOS transistor dynamic clocked logic circuits An electronic apparatus comprises a timer circuit driven for a given time in response to a key input, complementary MOS transistor clocked dynamic logic circuits each with an output storage capacitance, clock signal supply souce for supplying complementar... | 08/14/1979 |
| 3940595 | Electronic thermometer decoder and display system An electronic thermometer system for measuring and displaying temperature in more than one power of a radix comprising a first radix counter for counting pulses representative of the temperature measured; a first display device for displaying the count in... | 02/24/1976 |
