System and method of communication using at least two modulation methods
DC CAFCFirst Claim
1. A master communication device configured to communicate with one or more slave transceivers according to a master/slave relationship in which a slave communication from a slave device to the master communication device occurs in response to a master communication from the master communication device to the slave device, the master communication device comprising:
- a master transceiver configured to transmit a first message over a communication medium from the master transceiver to the one or more slave transceivers, wherein the first message comprises;
first information modulated according to a first modulation method,second information, including a payload portion, modulated according to the first modulation method, wherein the second information comprises data intended for one of the one or more slave transceivers andfirst message address information that is indicative of the one of the one or more slave transceivers being an intended destination of the second information; and
said master transceiver configured to transmit a second message over the communication medium from the master transceiver to the one or more slave transceivers wherein the second message comprises;
third information modulated according to the first modulation method, wherein the third information comprises information that is indicative of an impending change in modulation to a second modulation method, andfourth information, including a payload portion, transmitted after transmission of the third information, the fourth information being modulated according to the second modulation method, the second modulation method being of a different type than the first modulation method, wherein the fourth information comprises data intended for a single slave transceiver of the one or more slave transceivers, andsecond message address information that is indicative of the single slave transceiver being an intended destination of the fourth information; and
wherein the second modulation method results in a higher data rate than the first modulation method.
1 Assignment
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Reexamination
Accused Products
Abstract
A device may be capable of communicating using at least two type types of modulation methods. Methods and systems are provided for communication of data according to a communications method in which a master transceiver communicates with one or more slave transceivers according to a master/slave relationship. A first data message may include first information and second information that are modulated according to a first modulation method. The second information may include lower data rate data. A second data message may include third information that may be modulated according to the first modulation method and that may indicate an impending change to a second modulation method. The second modulation method may be used for transmitting fourth information, and the fourth information may be included in the second message. The fourth information may include higher data rate data, for example Internet access data.
232 Citations
52 Claims
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1. A master communication device configured to communicate with one or more slave transceivers according to a master/slave relationship in which a slave communication from a slave device to the master communication device occurs in response to a master communication from the master communication device to the slave device, the master communication device comprising:
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a master transceiver configured to transmit a first message over a communication medium from the master transceiver to the one or more slave transceivers, wherein the first message comprises; first information modulated according to a first modulation method, second information, including a payload portion, modulated according to the first modulation method, wherein the second information comprises data intended for one of the one or more slave transceivers and first message address information that is indicative of the one of the one or more slave transceivers being an intended destination of the second information; and said master transceiver configured to transmit a second message over the communication medium from the master transceiver to the one or more slave transceivers wherein the second message comprises; third information modulated according to the first modulation method, wherein the third information comprises information that is indicative of an impending change in modulation to a second modulation method, and fourth information, including a payload portion, transmitted after transmission of the third information, the fourth information being modulated according to the second modulation method, the second modulation method being of a different type than the first modulation method, wherein the fourth information comprises data intended for a single slave transceiver of the one or more slave transceivers, and second message address information that is indicative of the single slave transceiver being an intended destination of the fourth information; and wherein the second modulation method results in a higher data rate than the first modulation method. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A communication device configured to communicate according to a master/slave relationship in which a slave communication from a slave to a master occurs in response to a master communication from the master to the slave, the device comprising:
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a transceiver in the role of the master according to the master/slave relationship that is configured to send at least a plurality of communications, wherein each communication from among said plurality of communications comprises at least a respective first portion and a respective payload portion, wherein each communication from among said plurality of communications is addressed for an intended destination of the respective payload portion of that communication, and wherein for each communication from among said plurality of communications; said respective first portion is modulated according to a first modulation method from among at least two types of modulation methods, wherein the at least two types of modulation methods comprise the first modulation method and a second modulation method, wherein the second modulation method is of a different type than the first modulation method, said respective first portion comprises an indication of which of the first modulation method and the second modulation method is used for modulating respective payload data in the respective payload portion, and the payload data is modulated according to at least one of the first modulation method or the second modulation method in accordance with what is indicated by the respective first portion; the transceiver further configured to send at least a first communication of the plurality of communications such that payload data included in a payload portion of the first communication is modulated according to the second modulation method based on a first portion of the first communication indicating that the second modulation method will be used for modulating the payload data in the payload portion of the first communication, wherein the payload data is included in the first communication after the first portion of the first communication; the transceiver further configured to send at least a second communication of the plurality of communications such that payload data included in a payload portion of the second communication is modulated according to the first modulation method based on a first portion of the second communication indicating that the first modulation method will be used for modulating the payload data in the payload portion of the second communication. - View Dependent Claims (23, 24, 25)
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26. A master communication device configured to communicate according to a master/slave relationship in which a slave communication from a slave device to the master communication device occurs in response to a master communication from the master communication device to the slave device, the master communication device comprising:
a transceiver configured to transmit signals over a communications medium to a slave device using at least two different types of modulation methods and to receive one or more responses over the communication medium that comprise at least respective response data that is modulated according to one of the at least two different types of modulation methods, the at least two different types of modulation methods comprising a first modulation method and a second modulation method, wherein the transmitted signals comprise first transmitted signals and second transmitted signals, the first transmitted signals comprise at least two transmission sequences, the at least two transmission sequences include a first transmission sequence and a second transmission sequence, the transceiver is configured to transmit the first transmission sequence using the first modulation method, and the transceiver is configured to transmit the second transmission sequence using the second modulation method wherein; the first transmission sequence includes information that is indicative of an impending change in modulation method from the first modulation method to the second modulation method, the second transmission sequence includes a payload portion that is transmitted after the first transmission sequence, the first transmitted signals include first address information that is indicative of the slave device being an intended destination of the payload portion, the second transmitted signals comprise at least a third transmission sequence and a fourth transmission sequence, the transceiver is configured to transmit the third transmission sequence using the first modulation method, the transceiver is configured to transmit the fourth transmission sequence using the first modulation method, the third transmission sequence includes information indicative that the fourth transmission sequence will be transmitted using the first modulation method, the fourth transmission sequence includes a second payload portion that is transmitted after the third transmission sequence, and the second transmitted signals include second address information that is indicative of a specified slave device being an intended destination of the second payload portion . - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
Specification