TOT Power Control Patent Licensing Company Files Patent Infringement Action Against Apple’s 3G Cellular Technology – Intellectual Property

India: TOT Power Control Patent Licensing Company Files Patent Infringement Claim Against Apple’s 3G Cellular Technology

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Recently, TOT Power Control, SL (“TOT”), a technology and patent licensing entity, filed a lawsuit against Apple, Inc. (“Apple”) alleging infringement of two of TOT’s patents. The lawsuit was filed in Delaware District Court for infringement of two wireless communications technology patents covering baseband modem output power and its relationship to call quality. TOT in its action against Apple is seeking damages, royalties and legal costs.

TOT’s patent portfolio is based on technology designed, developed and patented by its president, Alvaro Medrano, along with four colleagues. During his Masters studies in Astronautics and Space Engineering at Cranfield University, Mr. Medrano specialized and developed some power control solutions useful in mobile communications. The technologies provide superior methods and devices for managing how energy is used to respond to decreasing and increasing radio signal to interference ratio (SIR).

The patents in question are:

  • S. Patent No. 7,532,865 entitled “Outer Loop Power Control Method and Device for Wireless Communications Systems”, and
  • S. Patent No. 7,496,376, entitled “Outer Loop Power Control Method and Device for Wireless Communication Systems”

Essentially, in wireless communication system, TOT’s patents / technologies allow power control using the outer loop which includes the detection of normal operating, winding and unwinding modes of the outer loop. and, in the last mode, unwinding, anticipates the appropriate modification of the target signal to interference ratio to quickly adapt to the power control function of the outer loop in normal mode. Thus, the running time is shortened and interference in the mobile communication system is reduced, while its capacity and the quality of its wireless connections are increased.

From an application point of view, generally, power control for current transmissions, such as telephone calls, depends on a closed loop system that adjusts the transmit power (inner loop) according to a target of. signal / interference ratio (external loop). While standards such as 3GPP UMTS offer specifications for inner loop power control, outer loop algorithms, which adjust the target signal to interference ratio to account for changing radio conditions, are not well defined. However, with this patented TOT technology, power control is used in wireless communication protocols to avoid interference between user equipment codes in uplink and downlink signals. In patented TOT technology, target signal-to-interference ratio values ​​are managed so that the power, and therefore the capacity of the wireless channel, is not wasted and call quality is maintained.

Also in the past, TOT has brought similar patent infringement action against a number of large wireless companies, including Vodafone, Verizon, AT&T and T-Mobile. Huawei has also been named as an infringing party in TOT’s lawsuit against Vodafone Spain after the phone company withdrew from a 2012 license agreement to implement 3G technology developed by the Chinese company.

TOT Power Control Patent Licensing Company Files Patent Infringement Claim Against Apple’s 3G Cellular Technology

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The Patents Act of 1970, along with the Patents Rules of 1972, entered into force on April 20, 1972, replacing the Indian Patents and Designs Act of 1911. The Patents Act was largely based on the recommendations of the report of the Ayyangar Committee headed by Judge N. Rajagopala Ayyangar. One of the recommendations was to allow only process patents with respect to inventions relating to drugs, drugs, foods and chemicals.