Systems and methods for indicating the existence of accessible information pertaining to articles of commerce

1. A system for indicating an existence of a link to information pertaining to an article of commerce, the system comprising:

a mobile device comprising a portable handheld housing and a communication interface configured to enable the mobile device to communicate with a communication network, the mobile device further comprising a signal processing device and a visual input device, the visual input device affixed within the portable handheld housing;

digital files associated with the mobile device,

a server in communication with the communication network, the server comprising a server database configured to store a look-up table that includes at least a plurality of identification codes associated with a plurality of articles of commerce, the look-up table also storing a plurality of information link indicators, each information link indicator associated with a respective identification code and article of commerce, and each information link indicator being configured as a status signal indicating the existence or absence of a link to information pertaining to a respective article of commerce, the link being made to the information via the communication network;

wherein the visual input device is configured to capture an image of an article of commerce and decode the image to obtain an identification code;

wherein, in response to receiving the identification code, the signal processing device is configured to look up the identification code in the look-up table to determine from a respective information link indicator whether or not a link exists for accessing information pertaining to an article of commerce associated with the identification code via the communication network, wherein the signal processing device determines whether or not the link exists without accessing the communication network.

2. The system of claim 1 , wherein the mobile device further comprises a visual output device for producing visual signals to indicate to a user of the mobile device whether or not the image is associated with an article of commerce for which information pertaining to the article of commerce is accessible via the communication network.

3. The system of claim 1 , wherein the mobile device further comprises an audio output device for producing audio signals to indicate to a user of the mobile device whether or not the image is associated with an article of commerce for which information pertaining to the article of commerce is accessible via the communication network.

4. The system of claim 1 , wherein the look-up table further comprises hyperlinks enabling the communication interface to access information about the respective article of commerce from at least one web page via the communication network.

5. The system of claim 1 , wherein the communication interface is configured to automatically receive periodic updates from the server for updating the look-up table.

6. The system of claim 1 , wherein the look-up table is further configured to store at least one of descriptions of the plurality of articles of commerce and advertisement content regarding the plurality of articles of commerce.

7. A method for indicating an existence of a link to information pertaining to an article of commerce, the method comprising:

downloading a look-up table from a server database via a communication network, wherein the look-up table is configured to store a plurality of identification codes associated with a plurality of articles of commerce, the look-up table also storing a plurality of information link indicators, each information link indicator associated with a respective identification code and article of commerce, and each information link indicator being configured as a status signal indicating the existence or absence of a link to information pertaining to a respective article of commerce, the link being made to the information via the communication network wherein downloading and storing the look-up table is performed when the mobile device is not being used for voice communication;

capturing an image associated with an article of commerce using a visual input device of the mobile device;

decoding the image to obtain an identification code; and

looking up the identification code in the look-up table to determine from a respective information link indicator whether or not information pertaining to the article of commerce associated with the identification code is accessible via the communication network, wherein looking up the identification code to determine whether or not the information is accessible is performed without accessing the communication network.

8. The method of claim 7 , further comprising the step of producing visual signals to indicate to a user of the mobile device whether or not the image is associated with an article of commerce for which information pertaining to the article of commerce is accessible via the communication network.

9. The method of claim 7 , further comprising the step of producing audio signals to indicate to a user of the mobile device whether or not the image is associated with an article of commerce for which information pertaining to the article of commerce is accessible via the communication network.

10. The method of claim 7 , further comprising the step of automatically downloading periodic updates of the look-up table from the server database.

11. The method of claim 7 , wherein the look-up table further comprises hyperlinks enabling access to information about the respective article of commerce from at least one web page via the communication network.

12. A mobile device for indicating an existence of a link to information pertaining to an article of commerce, the mobile device comprising:

a portable handheld housing;

a communication interface configured to communicate with a communication network;

an input device configured to receive identifying information pertaining to an article of commerce;

a processing device configured to determine the article of commerce based on the identifying information; and

wherein the communication interface is configured to download a look-up table from a server database and store the look-up table when the mobile device is not being used for voice communication, the look-up table includes at least a plurality of identification codes associated with a plurality of articles of commerce, the look-up table also stores a plurality of information link indicators, each information link indicator associated with a respective identification code and article of commerce, and each information link indicator being configured as a status signal indicating the existence or absence of a link to information pertaining to a respective article of commerce, the link being made to the information via the communication network;

wherein the input device is configured to capture an image of an article of commerce and decode the image to obtain an identification code;

wherein, in response to receiving the identification code, the processing device is configured to look up the identification code in the look-up table stored in the local database to determine from a respective information link indicator whether or not a link exists for accessing information pertaining to an article of commerce associated with the identification code via the communication network, wherein the processing device determines whether or not the link exists without accessing the communication network.

13. The mobile device of claim 12 , further comprising a visual output device for producing visual signals to indicate to a user of the mobile device whether or not the image is associated with an article of commerce for which information pe liaining to the article of commerce is accessible via the communication network.

14. The mobile device of claim 12 , further comprising an audio output device for producing audio signals to indicate to a user of the mobile device whether or not the image is associated with an article of commerce for which information pertaining to the article of commerce is accessible via the communication network.

15. The mobile device of claim 12 , wherein the look-up table further comprises hyperlinks enabling the communication interface to access information about the respective article of commerce from at least one web page via the communication network.

16. The mobile device of claim 12 , wherein the look-up table is further configured to store at least one of descriptions of the plurality of articles of commerce and store advertisement content regarding the plurality of articles of commerce.