Abstract: A frame error concealment method based on frames including transform coefficient vectors including the following steps: It tracks sign changes between corresponding transform coefficients of predetermined sub-vectors of consecutive good stationary frames. It accumulates the number of sign changes in corresponding sub-vectors of a predetermined number of consecutive good stationary frames. It reconstructs an erroneous frame with the latest good stationary frame, but with reversed signs of transform coefficients in sub-vectors having an accumulated number of sign changes that exceeds a predetermined threshold.

Abstract: According to the invention a device has a calculation unit distributing value units into a first and a second group, setting a first counter value and performing comparison value dependent calculations. In these calculations it receives a selection of all value units in the first group or one value unit in the second group, compares at least two comparison values with each other and increases the number of value units in the first group if the user has selected all the value units therein or in another group if the user has selected one value unit in case the comparison is in favor of the user, or otherwise removes all selected value units. The calculation unit repeats the calculations and changes the counter value each time calculations are performed for only one value unit, and otherwise resets the first counter value and automatically selects all value units in the first group in the calculations if the counter value has reached a second counter value.

Abstract: A cutting insert includes a cemented carbide body having two main cutting edges joined by a corner cutting edge. A primary land extends behind the corner and main cutting edges. A chip breaker in the form of a micro ridge projects upwardly from a section of the primary land located in the vicinity of the cutting corner. The primary land has a width in the range of 0.1 to 0.8 mm, and the micro ridge has a width which is between 25 and 80 percent of the width of the primary land.

Abstract: An edge rounded cutting tool insert which shows less flank wear in the nose area and improved toughness behavior on the main cutting edge. The improved toughness and decreased flank wear is achieved by decreasing the W/H ratio and increasing H from the nose area to the middle of the main cutting edge wherein W is the width of edge rounding of the cutting edge along the rake face and H is the width of edge rounding of the cutting edge along the clearance face.

Abstract: A method and system for authenticating the identification of mobile stations during system access is disclosed. A modified electronic serial number, including an encoded COUNT value, sent by the mobile station is compared with a modified electronic serial number corresponding to that mobile station stored in system memory. In this way, fraudulent use can be deterred and detected without changing the specification of information to be transmitted over the air interface in existing radiocommunication systems.