METHOD AND APPARATUS FOR INFRARED DATA COMMUNICATION
First Claim
1. A handheld device for receiving a unidirectional infrared transmitted signal containing a message over a communication medium, said handheld device comprising:
- a physical layer;
a link layer;
means for receiving said transmitted signal to form a received signal;
means for passing said received signal to said physical layer;
means for passing said received signal from said physical layer to said link layer; and
means for utilizing information contained in said received signal to accomplish a task.
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Accused Products
Abstract
An apparatus and method for conveying contextually relevant information to a wireless client (112) is disclosed. More particularly, an emitter (108) transmits a diffuse infrared signal to a client (112) having an IrDA infrared communication interface (130). Emitter (108) communicates with client (112) by making a link layer in emitter (108) compliant with an IrDA link layer running on client (112). To perform communication, data is received at emitter (108) from a service provider (102). The data is formatted into an IrDA compliant diffuse infrared signal and transmitted to client (112). Client (112) receives the data and parses it to extract contextually relevant information contained therein.
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Citations
20 Claims
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1. A handheld device for receiving a unidirectional infrared transmitted signal containing a message over a communication medium, said handheld device comprising:
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a physical layer;
a link layer;
means for receiving said transmitted signal to form a received signal;
means for passing said received signal to said physical layer;
means for passing said received signal from said physical layer to said link layer; and
means for utilizing information contained in said received signal to accomplish a task. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of utilizing executable code in a handheld device comprising the steps of:
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receiving a signal at a physical layer communicatively associated with a communication interface to form a received signal;
passing said received signal from said physical layer to a link layer;
extracting information contained in said received signal; and
making said information available to a user of said handheld device. - View Dependent Claims (14, 15, 16, 17)
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18. A method of receiving a unidirectional-infrared-data-signal from a transmitter comprising:
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receiving said data signal at a communication interface to form a received signal;
passing said received signal from said communication interface to a physical layer;
making said received signal available to a link layer; and
utilizing information contained in said received signal to accomplish a task. - View Dependent Claims (19, 20)
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Specification