Abstract: A communication system, comprises processing means located on a near field communications (NFC) handset incorporating a storage medium for storing signals received, in use, from a tag which is part of a display such as a poster; said storage medium being adapted to store a plurality of signals received, in use, from a plurality of disparate tags; wherein said signals contain at least a Uniform Resource Locator (URL), and one or more display specific elements such as a spatial indicator; and wherein said processing means is adapted to upload signals to a remote server when said handset is on-line mode of use allowing remote processing means to record and profile a user's interaction with said displays; and is adapted for downloading signals for personalising the user's interaction with said handset when said handset is an off-line mode of use.

Abstract: A voice activity detector suitable for deployment in a mobile phone apparatus is disclosed. An advantage of the voice activity detector is that it is better able to provide a decision (79) as to whether an input signal (19) consists of noise (which it is not desired to transmit) or comprises speech or information tones (which are required to be transmitted), especially in noisy environments. The voice activity detector includes a number of components, in particular an auxiliary voice activity detector (3). The auxiliary voice activity detector (3) distinguishes between noise and speech on the basis that the spectrum of speech changes more rapidly than that of noise. This results in the auxiliary detector (3) rarely mistaking a speech signal to be a noise signal. Hence, a very reliable noise template (421) is obtained. For this reason, the auxiliary detector (3) is also useful in noise reduction applications. The voice activity detector also uses a neural net classifier (7).