Jean-Louis Clara

Title: Innovations by Jean-Louis Clara

Introduction

Jean-Louis Clara is a notable inventor based in La Colle-sur-Loup, France. He has made significant contributions to the field of telecommunications, holding a total of 3 patents. His work primarily focuses on methods and apparatuses that enhance the functionality and reliability of telecommunication devices.

Latest Patents

One of his latest patents is titled "Method and apparatus for G.706 frame alignment and CRC procedure test." This invention describes a test tool based on a PC workstation, which is used to validate any E1 framing telecommunication device. To comply with the CCITT G.706 recommendations, a device must pass a series of predetermined test cases. Each test case contains sequences according to the CCITT G.706 specifications. The purpose of this test tool is to generate stimuli in transmission mode, while in reception mode, it analyzes and compares the returned data with the expected response. The data bytes are structured in an E1 multiframe format containing 16 frames of 32 timeslots, where each timeslot represents a data byte. According to the G.706 recommendations, timeslot 0 is dedicated to frame and multiframe alignment and the CRC test. This test tool enables the generation of content for the 8-bit timeslot 0 of each frame, allowing for modifications in frame alignment, multiframe alignment, and CRC procedure testing. It also stores the content of the received 8-bit timeslot 0 to monitor the remote alarm indication bit (`A` bit), reflecting the behavior of the tested device to determine compliance with the CCITT G.706 recommendations.

Another significant patent is the "Method and apparatus for initializing ISDN adapter cards in a workstation." This method involves initializing ISDN adapter cards installed within a workstation that has a main processor and an ISDN primary adapter for connecting the ISDN adapter cards to an ISDN primary gateway. Each ISDN adapter card has circuits for handling at least one B-channel and a first processor associated with memory storage. The ISDN primary adapter includes a second processor associated with a second memory storage. In response to a specific polling pattern transmitted to each adapter card by the primary adapter, a pattern is sent to the workstation processor to request loading the second memory storage with operational code transferred from the workstation to the ISDN adapter card. The ISDN primary adapter, in response to the request pattern received by the main processor, transmits