Measurement probe systems for co-ordinate positioning apparatus
First Claim
1. A measurement probe system comprising a measurement probe mountable to co-ordinate positioning apparatus and a probe interface,the measurement probe comprising a measurement portion for measuring an object and a first data transfer portion for communicating with the probe interface, the measurement portion comprising a deflectable stylus and a deflection measurement mechanism for measuring deflection of the deflectable stylus,the probe interface comprising a first authentication module for verifying the authenticity of the measurement probe,wherein the measurement probe system further comprises a second data transfer portion for receiving data from and/or transmitting data to an associated data storage unit, wherein the measurement probe system comprises a second authentication module for verifying the authenticity of the associated data storage unit.
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Accused Products
Abstract
A measurement probe, such as a touch trigger measurement probe, is described that comprises a measurement portion for measuring an object and a data transfer portion for receiving data from and/or transmitting data to an associated unit. The measurement device also comprises an authentication module for verifying the authenticity of the associated unit. The authentication module may include a processor for running a one-way hash algorithm. Authenticity may be established using a challenge and response authentication process.
25 Citations
16 Claims
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1. A measurement probe system comprising a measurement probe mountable to co-ordinate positioning apparatus and a probe interface,
the measurement probe comprising a measurement portion for measuring an object and a first data transfer portion for communicating with the probe interface, the measurement portion comprising a deflectable stylus and a deflection measurement mechanism for measuring deflection of the deflectable stylus, the probe interface comprising a first authentication module for verifying the authenticity of the measurement probe, wherein the measurement probe system further comprises a second data transfer portion for receiving data from and/or transmitting data to an associated data storage unit, wherein the measurement probe system comprises a second authentication module for verifying the authenticity of the associated data storage unit.
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13. A measurement probe for co-ordinate positioning apparatus, the measurement probe comprising;
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a measurement device for generating measurement data indicative of the position of at least one point on the surface of an object; a first communications device for communicating with a remote probe interface; and a first authentication device for determining if the remote probe interface is an authentic remote probe interface, wherein the first communications device passes the measurement data to the remote probe interface only when the authentication device has determined that the remote probe interface is an authentic remote probe interface, wherein the measurement probe also comprises an interface for providing a data connection with an associated data storage unit, a second communications device for receiving data from an associated data storage unit connected to the interface, and a second authentication device for determining if a data storage unit connected to the interface is an authentic data storage unit; wherein data stored on a data storage unit connected to the interface is used by the measurement probe only when the authentication device has determined that the data storage unit connected to the interface is an authentic data storage unit. - View Dependent Claims (14, 15, 16)
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Specification