Abstract: A real-time personal fitness training guidance system is described. A camera unit including one or more cameras is provided to take images of a user ready to use or using an exercise equipment. One or more current vital signs and physical activity information are derived from the captured images. Further, a personal fitness training guidance is generated for the user in accordance with the current vital signs, the physical activity information and a workout program the user is doing. To allow the user to see how he or she is doing in his/her workout, an output unit is provided to show the personal fitness training guidance to the user in real-time. An external device is also provided to generate a coaching guidance for the user.

Abstract: The invention provides a perceptual audio signal compression system and method. One aspect of the invention described herein includes transforming the signal into a plurality of bi-orthogonal modified discrete cosine transform (BMDCT) frequency coefficients using a bi-orthogonal modified discrete cosine transform; quantizing the BMDCT frequency coefficients to produce a set of integer numbers which represent the BMDCT frequency coefficients; and encoding the set of integer numbers to lower the number of bits required to represent the BMDCT frequency coefficients.

Abstract: An audio coding technique is presented, which utilizes a time varying non-uniform filterbank in conjunction with a Perceptual Audio Coder. The non-uniform filterbank is formed from a plurality of uniform filter bank sections, and a transition filter. Each uniform filterbank section covers a portion of a predetermined frequency axis, and the transition filter is utilized to cover the remainder of the predetermined frequency axis. Aliasing terms introduced at the band edges of the transition filter are cancelled to obtain an overall transfer function for the non-uniform filterbank, which has linear phase and is approximately flat. Use of the non-uniform filterbank permits an increase in temporal resolution, which results in an improved coding technique over a wide range of frequencies.