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The present invention relates generally to fingerprinting, e.g., a reduced-bit representation or other identifier of a media signal (e.g., audio, video or still images). One method recites: receiving a partial fingerprint of a media signal, wherein the partial fingerprint is derived from the media s

The present invention relates generally to fingerprinting, e.g., a reduced-bit representation or other identifier of a media signal (e.g., audio, video or still images). One method recites: receiving a partial fingerprint of a media signal, wherein the partial fingerprint is derived from the media signal itself, the partial fingerprint being computed a first location; processing the partial fingerprint to obtain a more refined fingerprint, relative to the partial fingerprint, the act of processing occurring at a second location that is remote from the first location; and based at least in part of the refined fingerprint, identifying the media signal or information associated with the media signal. Another method recites: obtaining a fingerprint derived from a media signal, the fingerprint comprising a reduce-bit representation of the media signal; determining information associated with the fingerprint or the media signal; and causing a text message to be sent to a mobile device representing at least a portion of the information. Of course, other methods and combinations are described and claimed as well.

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1. A method comprising: receiving a first portion of a fingerprint derived from a compressed representation of a media signal, wherein the fingerprint comprises a reduced-bit representation of the compressed media signal;receiving a portion of the compressed representation of the media signal;comput

1. A method comprising: receiving a first portion of a fingerprint derived from a compressed representation of a media signal, wherein the fingerprint comprises a reduced-bit representation of the compressed media signal;receiving a portion of the compressed representation of the media signal;computing a second portion of the fingerprint from the received portion of the compressed representation of the media signal;determining, using a processor, information associated with the fingerprint or with the media signal; andsending at least a portion of the information to a mobile device. 2. The method of claim 1, wherein the fingerprint is derived using at least a hashing process. 3. The method of claim 1, wherein the media signal comprises at least audio, video or a still image. 4. The method of claim 1, wherein the mobile device generates the first portion of the fingerprint. 5. The method of claim 1, wherein the fingerprint is generated upon activation of a fetch command provided by the mobile device. 6. The method of claim 5, wherein the fetch command comprises a voice command. 7. The method of claim 1, wherein the mobile device comprises a cell phone. 8. The method of claim 1, further comprising: deriving the fingerprint from a compressed form of the media signal; andmapping the information associated with the fingerprint or with the media signal using the fingerprint. 9. A non-transitory computer readable medium having instructions stored thereon, the instructions comprising: instructions to receive a first portion of a fingerprint derived from a compressed representation of a media signal, wherein the fingerprint comprises a reduced-bit representation of the compressed media signal;instructions to receive a portion of the compressed representation of the media signal;instructions to compute a second portion of the fingerprint from the received portion of the compressed representation of the media signal;instructions to determine information associated with the fingerprint or with the media signal; andinstructions to trigger transmission of at least a portion of the information to a mobile device. 10. An apparatus comprising: means for receiving a first portion of a fingerprint derived from a compressed representation of a media signal, wherein the fingerprint comprises a reduced-bit representation of the compressed media signal;means for receiving a portion of the compressed representation of the media signal;means for computing a second portion of the fingerprint from the received portion of the compressed representation of the media signal;means for determining information associated with the fingerprint or with the media signal; andmeans for sending at least a portion of the information to a mobile device. 11. An apparatus comprising: an input configured to: receive a first portion of a fingerprint derived from a compressed form of a media signal; andreceive a portion of the compressed representation of the media signal; anda processing system configured to: compute a second portion of the fingerprint from the received portion of the compressed representation of the media signal;determine information associated with the fingerprint; andcontrol sending of at least a portion the information to a mobile device. 12. The non-transitory computer readable medium of claim 9, wherein the fingerprint is derived using at least a hashing process. 13. The apparatus of claim 10, wherein the fingerprint is derived using at least a hashing process. 14. The apparatus of claim 10, wherein the media signal comprises at least audio, video or a still image. 15. The apparatus of claim 11, wherein the fingerprint is derived using at least a hashing process. 16. The apparatus of claim 11, wherein the media signal comprises at least audio, video or a still image. 17. A system comprising: a server configured to receive a first portion of a fingerprint derived from a compressed form of a media signal;a database configured to store information associated with the media signal using the fingerprint; andthe server further configured to: receive a portion of the compressed representation of the media signal;compute a second portion of the fingerprint from the received portion of the compressed representation of the media signal; andretrieve the information from the database using the fingerprint and send at least a portion of the information to a mobile device. 18. The system of claim 17, further comprising: a registration process configured to derive the fingerprint from the compressed from of the media signal; anda mapping process configured to map the information associated with the media signal to the fingerprint. 19. The system of claim 17, wherein the fingerprint is derived using at least a hashing process. 20. The system of claim 17, wherein the media signal comprises at least audio, video or a still image.