TechPats

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Lab Services

Reverse Engineering And Teardown Services

When it comes to defending your client’s intellectual property in a court of law, you need a partner capable of uncovering the evidence necessary to support your claims – and you need that support fast.

Chances are your client does not have the time, resources or staff expertise to make your case, and especially does not have sufficient teardown and reverse engineering services. When you need IP evidence, modeling and research to ensure the best possible legal outcome, you need TechPats expertise as a leading reverse engineering company.

When you partner with TechPats, you ensure maximum patent protection or client defense, including the following litigation resources:

  • Pre-litigation analysis
  • Reverse engineering services and teardown
  • Expert reports
  • Infringement analysis
  • Evidence of Use (EoU)
  • Claim charts
  • Invalidity analysis

Our in-house engineering team leaves no stone unturned, investigating every angle and creating the detailed visual demonstrations you need to make your case in a court of law. We offer broad coverage in our reverse engineering capabilities.

Wireless LTE Test Lab

TechPats has recently added new capabilities to its existing capabilities, which are particularly useful in cases where one needs to create special external conditions to force a device to use/activate a feature of a standard.

Such external conditions may include generation of a specific traffic type (e.g. receiving a high speed streaming signal) or placing a device in high mobility mode, or in a controlled interference environment, or in all of them simultaneously.

The TechPats wireless lab has the ability to perform measurements and functional testing in the following two complementary environments which could be used depending on the end goals for patent infringement analysis: live testing in a mobile operator environment and captive network testing.

It should be noted that TechPats’ live testing involves observation of radio access signaling messages with no visibility of user specific information; hence users’ privacy cannot be compromised.

Live Testing in a Mobile Operator Network

In this type of testing, off-the-shelf terminals are connected via an air interface to network vendor equipment that is currently deployed and configured by the mobile service providers. This type of testing has its challenges and limitations. Network equipment behavior is determined by the product software release and only features which have been activated by the operator could be observed. In addition, signals are often encrypted and hence difficult to analyze, hence the test cases have to be constructed that do not rely on the interpretation of encrypted messages.

Nevertheless, live network testing offers very valuable insight into the use of inventions in commercial deployment in particular for claims which involve simultaneous terminal and network interactions.

Captive Network Testing

Captive testing uses terminal or/and network emulators, which are equipment that enables configuration of a device with any set of features which are either mandatory or optional to standards. Captive network testing offers a controllable environment with flexibility to create many test cases, which are not available in a live network testing environment, including the ability to observe non-encrypted signals, for example.

For patents with claims directed to terminals, off-the-shelf terminals can be acquired and connected to network emulators which can attempt to trigger certain terminal behaviors in order to verify if those terminals implement functionality that can be mapped on to claim elements.

For patents with claims directed to network devices, terminal emulators can be used to attempt to trigger a certain network behavior in order to verify if those network devices implement functionality that can be mapped on to claim elements.

4G/LTE Patents Analysis

TechPats’ wireless test lab offers a more complete service package to their clients when assessing wireless patents and for demonstrating Evidence of Use (EOU). Complementing this new wireless test bed capability is a wireless engineering team dedicated to patent analysis with extensive experience ranging from Bluetooth and WiFi to 2G and 3G cellular standards, network and product design and mobile applications.

In the last few years, 3GPP Cellular standards have converged on 4G/LTE-based solution and several mobile devices, which conform to the 4G standard, are available with many mobile operators having deployed 4G/LTE networks. LTE patents have become one of the most valuable assets for operating companies wanting to strengthen their defensive market position and for IP licensing companies.

Establishing the EoU for LTE-related patents is particularly conducive for functional testing since many LTE standards features are optional and the networks are still in the early deployment stages. Therefore mobile operators have not yet made all the standards features available to their subscribers.

The TechPats wireless engineering team has been active in providing a full range of analysis for LTE patents including evaluation of hundreds of patents declared to ETSI 3GPP. Our newly upgraded wireless testbed, which is equipped to provide analysis of full protocol stack between mobile devices and LTE base station (eNB), has been used for live LTE network testing in Canada and in the US for demonstrating the EoU.