Location History:
- Lakewood, CO (US) (1985 - 1986)
- Golden, CO (US) (1986)
Company Filing History:
2 out of 200 
1 out of 10 Years Active: 1985-1986
Title: John M Huft: Innovator in Telephone Circuit Technology
Introduction
John M Huft is a notable inventor based in Lakewood, Colorado. He has made significant contributions to the field of telecommunications, particularly in the development of innovative circuits for telephone systems. With a total of 3 patents to his name, Huft's work has had a lasting impact on the industry.
Latest Patents
Huft's latest patents include an "Auto-balance circuit for battery feed in a telephone circuit." This invention features an active current limiter that operates on the ring side of a telephone circuit. It utilizes a current mirror resistively connected across a supply voltage to establish the magnitude of loop current. Additionally, a first resistor is connected between the branches to allow the control voltage and loop current to vary based on loop length. The design also incorporates a differential amplifier to minimize the effects of extraneous metallic voltages.
Another significant patent is the "Current limiter for telephone office signalling." This invention involves a ring-ground circuit that includes a control transistor receiving base drive from a microprocessor. The control transistor's conduction initiates a ground-start condition in a relay coil connected to a central office battery voltage. The design ensures that the maximum collector current is limited, enhancing the reliability of telephone signaling.
Career Highlights
Throughout his career, John M Huft has worked with prominent companies in the telecommunications sector. He has been associated with GTE Communication Systems Corporation and GTE Lenkurt Incorporated. His experience in these organizations has contributed to his expertise in developing advanced telephone circuit technologies.
Collaborations
Huft has collaborated with various professionals in his field, including Frederick J Kiko. Their joint efforts have furthered the development of innovative solutions in telecommunications.
Conclusion
John M Huft's contributions to telephone circuit technology demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to improving telecommunications systems, making him a significant figure in the industry.