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For the Inventor, By the Inventor

Ilmmünster, Germany

Ludwig Hofmann

USPTO Granted Patents = 13

Average Co-Inventor Count = 1.2

ph-index = 6

Forward Citations = 139(Granted Patents)


Location History:

  • Lohhof, DE (1987)
  • Ilmmunster, DE (2000)
  • Ilmmünster, DE (2001 - 2005)
  • Ilmmuenster, DE (1999 - 2006)

Company Filing History:

goldMedal13 out of 30,034 
 
Siemens Aktiengesellschaft
 patents

Years Active: 1987-2006

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13 patents (USPTO):Explore Patents
1. 7095985 - Radio transmitter and receiver (2006-08-22),
2. 6950681 - Transmission of data by ultrasound (2005-09-27),
3. 6728234 - Method and apparatus for using a low clock frequency to maintain a time reference governed by a high clock frequency (2004-04-27),
4. 6642754 - Clock signal generator employing a DDS circuit (2003-11-04),
5. 6477371 - Method and configuration for transmitting data (2002-11-05),
6. 6456834 - Mobile radio set for operation in a TDMA system (2002-09-24),
7. 6311241 - Method and configuration for transferring programs (2001-10-30),
8. 6163232 - Frequency/phase modulator using a digital synthesis circuit in a phase (2000-12-19),
9. 6157092 - Method and circuit configuration for voltage supply in electric function (2000-12-05),
10. 6112066 - Mobile radio set and method of determining the reception field strength (2000-08-29),
11. 6104252 - Circuit for automatic frequency control using a reciprocal direct (2000-08-15),
12. 5867781 - Mobile radiotelephone system and broadcast station (1999-02-02),
13. 4642574 - Digital quartz-stabilized FM discriminator (1987-02-10),

Title: Ludwig Hofmann: Innovator in Radio and Ultrasound Technology

Introduction

Ludwig Hofmann is a notable inventor based in Ilmmünster, Germany. He has made significant contributions to the fields of radio transmission and ultrasound technology. With a total of 13 patents to his name, Hofmann's work has had a considerable impact on modern communication systems.

Latest Patents

Hofmann's latest patents include a radio transmitter and receiver, specifically a mobile telephone featuring a transmitter output stage, a receiver part, and a transmission/reception antenna. This innovative design incorporates a transmission band-transmitting filter and a reception band-transmitting filter, along with a compensation element that mitigates crosstalk from the transmission signal to the receiver part. Another significant patent involves a transmission system that utilizes ultrasound for data transmission. This system generates a broadband signal through code spreading and effectively eliminates echoes using correlation techniques. The preferred applications for this invention include air interfaces over short distances, such as connecting cordless handsets or hands-free telephones to traditional telephones.

Career Highlights

Hofmann is currently employed at Siemens Aktiengesellschaft, a leading global technology company. His work at Siemens has allowed him to develop and refine his innovative ideas, contributing to advancements in communication technology.

Collaborations

Throughout his career, Hofmann has collaborated with notable colleagues, including Frank Lillie and Bernhard Raaf. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Ludwig Hofmann's contributions to radio and ultrasound technology exemplify the spirit of innovation. His patents reflect a commitment to enhancing communication systems, making him a significant figure in the field of technology.

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