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US 6964107 System, method, device and computer code product for improving the readability of an electronic compass US 6552676 Method and apparatus for power reduction in switched capacitor circuits US 20090179628 Detection of lightning US 7200418 Lightning distance meter feature for mobile terminals US 20100285849 Method and Apparatus For Staged Approach Transient RF Detection And Sensor Power Saving US 20100121834 Method and Apparatus for Quality Ranking of Media US 20110066717 Method and apparatus for time adaptation of online services to user behavior FI 20135911 Underwater transceiver device, underwater communication system and related communication method (most of my signal processing and algorithm inventions were declared secret instead of patenting them)
Development of iodine stabilized He-Ne lasers at MRI.
J. Hu, T. Ahola, K. Riski, E. Ikonen.
Measurement. Journal of the International
Measurement Confederation (IMEKO), No 16, 1995, pp. 187-193.
On the nth harmonic locking of the iodine stabilized He-Ne laser.
J. Hu, T. Ahola, E. Ikonen, K. Riski.
Proceedings of the XXIX Annual Conference of the Finnish Physical Society,
Jyväskylä, March 16-18, 1995, paper 5.9.
Frequency Shift of (127)I2 Stabilized He-Ne Laser at the 5th Harmonic Locking,
J. Hu, T. Ahola, E. Ikonen and K. Riski.
Proceedings of PHOTONICS '95,
Prague, Czech Republic, August 23-25, 1995, pp. 85-88.
A digital control system for the iodine-stabilized He-Ne laser,
T. Ahola, J. Hu.
Proceedings of the XXX Annual Conference of the Finnish Physical Society,
Report TKK-F-A747, Helsinki 1996, paper 1:04 (poster).
Frequency Shifts of Iodine Stabilized He-Ne Lasers at Higher Order
Harmonic Stabilization,
J. Hu, T. Ahola, E. Ikonen and K. Riski.
Techical digest of the Conference on Precision Electromagnetic Measurement,
pp. 191-192, 1996.
Frequency Shifts of Iodine Stabilized He-Ne Lasers at Higher Order
Harmonic Stabilization,
J. Hu, T. Ahola, E. Ikonen and K. Riski.
IEEE Transactions on Instrumentation and Measurement,
vol. 46, n.o. 2, pp. 186-190, April 1997.
A Digital Control System for The Iodine Stabilized He-Ne Laser
Tom Ahola, Jianpei Hu, and Erkki Ikonen.
Review Of Scientific Instruments,
vol. 69, n.o. 5, pp. 1934-1937, May 1998.
A Tunable Iodine Stabilized He-Ne Laser At Wavelengths 543 nm, 605 nm and 612 nm
J. Hu, T. Ahola, K. Riski and E. Ikonen.
Techical digest of the Conference on Precision Electromagnetic Measurement,
pp. 249-250, 1998.
A Digital Control System For Iodine Stabilized Lasers
T. Ahola, J. Hu and E. Ikonen.
Techical digest of the Conference on Precision Electromagnetic Measurement,
pp. 247-248, 1998.
Stabilization and frequency measurements of green He-Ne lasers
K. Nyholm, T. Ahola, J. Hu, and E. Ikonen
Proceedings of the XXXIV Annual Conference of the Finnish Physical Society,
March 9-11, 2000, Espoo, Finland, Helsinki University of Technology, Publications in Engineering Physics
TKK-F-A797, p. 69.
International comparison of He-Ne lasers stabilized with 127I2 at l=633 nm: Comparison of the fift
A. Lassila. K. Riski. J. Hu. T. Ahola. S. Naicheng. L. Chengyang. P. Balling. J. Blabla. L. Abramova
Metrologia 37
pp. 701-707, 2000.
Simple technique for detection of HF radiation from lightning
Jakke Mäkelä, J. Jantunen, T. Ahola, A. Hämäläinen, Nokia Oyj, Finland, R. Montaño, and V. Cooray, University of Uppsala, Sweden
ICLP2006, 28th International Conference on Lightning Protection,
September 17-21, 2006, Kanazawa, Japan
Using full-flash narrowband energy for ranging of lightning ground strokes
J.S. Mäkelä, N. Porjo, T. Ahola, A. Hämäläinen, J. Jantunen
Journal of Atmospheric and Solar-Terrestrial Physics, 2007
Wearable FPGA Based Wireless Sensor Platform
Tom Ahola, Pekka Korpinen, Juha Rakkola, Teemu Rämö, Jukka Salminen and Jari Savolainen
EMBS2007, 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Using ratio between breakdown and return stroke intensity for narrowband flash distance estimation
J.S. Mäkelä, N. Porjo, J. Jantunen, T. Ahola, A. Hämäläinen, T. Tuomi, A. Mäkelä, V. Cooray
ICLP2009, 29th International Conference on Lightning Protection, June 23-26, 2008, Uppsala, Sweden
Pedometer for Running Activity Using Accelerometer Sensors on the Wrist
T. Ahola
Medical Equipment Insights 2010:3 1-8
It is just behind the corner - Multimodal exploration of augmented reality environments.
Saija Lemmelä, Tom Ahola, David Murphy
Pervasive 2010 Conference. Workshop on Multimodal Location Based Techniques for Extreme Navigation.
Considerations for synchronisation in body area networks for human activity monitoring
Johan Plomp, Mikko Heiskanen, Mika Hillukka, Tapio Heikkilä, Jari Rehu, Niek Lambert, Tom Ahola
International Journal of Wireless Information Networks 2011
Raja - A Multidisciplinary Artistic Performance
Tom Ahola, Koray Tahiroglu, Teemu Ahmaniemi, Fabio Belloni, Ville Ranki
NIME 2011