Abstract: Embodiments herein relate to systems, devices and methods for fitting hearing assistance devices. In a first aspect, a method of fitting a hearing assistance device is included, the method including providing an audio sample to a hearing assistance device wearer, receiving input from the hearing assistance device wearer regarding a preferred sound volume or perceived loudness, receiving input from the hearing assistance device wearer with the external device regarding a bass/treble balance, and determining a maximum power output of the hearing assistance device that does not exceed a loudness discomfort level (LDL). Other embodiments are also included herein.

Abstract: A cover device for covering a baby bottle. The device includes a cloth bottle cover that has a closed bottom end and an open top end. A pocket is disposed on the cloth bottle cover. An audible signal generator is provided that is placed in the pocket of the cloth bottle cover. The audible signal generator creates an audible signal when press-activated. The bottle cover with the audible signal generator is advanced over a baby bottle. The bottle cover provides a medium by which a child can better grasp the bottle. Furthermore, the bottle cover insulates the bottle and absorbs drips from the bottle. The audible signal generator is activated when a child presses against the cover above the audible signal generator. As such, the use of the present invention adds visual and audible interest to a baby bottle as well as making the bottle easier to hold and use.

Abstract: A cover device for covering a baby bottle. The device includes a cloth bottle cover that has a closed bottom end and an open top end. A pocket is disposed on the cloth bottle cover. An audible signal generator is provided that is placed in the pocket of the cloth bottle cover. The audible signal generator creates an audible signal when press-activated. The bottle cover with the audible signal generator is advanced over a baby bottle. The bottle cover provides a medium by which a child can better grasp the bottle. Furthermore, the bottle cover insulates the bottle and absorbs drips from the bottle. The audible signal generator is activated when a child presses against the cover above the audible signal generator. As such, the use of the present invention adds visual and audible interest to a baby bottle as well as making the bottle easier to hold and use.

Abstract: A method is disclosed whereby individual members of a group of members or entities may be provided, under the control of a trusted member, referred to as the parent, with respective individual secret keys for use in public key cryptography, such that the matching public key can be readily derived, and group membership authenticated. The parent initially establishes a public key (e,N) where N=P.Q is the product of two primes. In response to a request from a group member, the parent selects two further primes R,S and communicates two values dependent thereon to the requesting member, which selects two more primes T and U for use in conjunction with the received values to establish the member's secret key.

Abstract: An entity such as a smart card includes microprocessor means, input/output means, and PROM storage means which stores a set of transformations S.sub.i (i=1, . . . , n) of a corresponding set of public factors F.sub.1 (i=1, . . . , n), where S.sub.i =F.sub.i.sup.d (mod N), d being the secret key counterpart of a public key e associated with the modulus N, which is the product of two primes. An authentication device which stores the public factors F.sub.i and the values of N and e, generates an n bit random vector v=v.sub.i which is transmitted to the card where a product Y of the values S.sub.i selected according to the 1 bits of v is computed and transmitted to the authentication device which computes X.sub.act =Y.sup.e (mod N) and also computes X.sub.ref, the product of the F.sub.i selected according to the 1 bits of v. If X.sub.act and X.sub.ref are equal, then the card is authenticated to within a certain probability. An analogous method is disclosed for certifying messages to be transmitted.