Location History:
- Alingsis, SE (2002)
- Bromma, SE (1991 - 2006)
Company Filing History:
2 out of 25,797 
1 out of 668 
Years Active: 1991-2006
Title: Per Henrik Ljunggren: Innovator in Residential Networks and Wireless Technology
Introduction
Per Henrik Ljunggren is a notable inventor based in Bromma, Sweden. He has made significant contributions to the fields of residential service networks and wireless technology. With a total of 3 patents to his name, Ljunggren's work reflects his commitment to innovation and technological advancement.
Latest Patents
Ljunggren's latest patents include a "Method and system for control and maintenance of residential service networks." This invention discloses a system designed to control multiple residential properties within connected networks. The system features a remote control unit that connects to an access network via the Internet, allowing for efficient management of residential properties. Additionally, it includes a service gateway that compiles measurement values from various sensors, enhancing the control capabilities of the residential network.
Another significant patent is the "Packet loss tolerant reshaping method." This invention introduces a reshaper in the Data Link Control layer of a Wireless Local Area Network (WLAN) system. The reshaper addresses time distortion in packet streams, ensuring that the output stream maintains proper time intervals and is free from jitters. By utilizing Automatic Repeat Request sequence numbers, the reshaper can detect lost packets and determine specific transmission times, thereby improving the reliability of data transmission.
Career Highlights
Throughout his career, Ljunggren has worked with prominent companies, including Telefonaktiebolaget LM Ericsson and Electrolux. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology.
Collaborations
Ljunggren has collaborated with notable colleagues, including Mikael Larsson and Peter Larsson. These partnerships have fostered a creative environment that has led to the development of impactful technologies.
Conclusion
Per Henrik Ljunggren's contributions to the fields of residential networks and wireless technology demonstrate his innovative spirit and dedication to improving connectivity and data transmission. His patents reflect a deep understanding of technology and its applications in everyday life.