Wirefree intercom having error free transmission system and process
First Claim
1. A digital communication device, comprising:
- a digital transceiver;
a microcontroller interconnected to said transceiver, wherein said microcontroller is programmed toreceive a first transmission including digital data over a primary channel;
receive a second transmission of said digital data over a secondary channel, the second transmission comprising a transmission of the digital data in the first transmission;
review said first transmission for errors in said digital data;
switch to the secondary channel if said first transmission includes errors in said digital data; and
correct said errors in said digital data of said first transmission by extracting missing or damaged packets from the first transmission and replacing the missing or damaged packets using digital data extracted from said second transmission.
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Accused Products
Abstract
A wireless intercom having a microcontroller that is programmed to place the intercom into a power saving sleep mode unless actively receiving or transmitting signals. The microcontroller of the intercom is interconnected to a transceiver for sending and receiving digital data packets, and to a codec for converting the digital packets to analog sound signals, and vice versa. The intercom receives digital transmission of data over a first channel and then corrects any errors in the digital data using a retransmission of the digital data over a second channel that is sufficiently spaced apart from the first channel to avoid the possibility of interference affecting both the first and second channels.
41 Citations
20 Claims
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1. A digital communication device, comprising:
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a digital transceiver; a microcontroller interconnected to said transceiver, wherein said microcontroller is programmed to receive a first transmission including digital data over a primary channel; receive a second transmission of said digital data over a secondary channel, the second transmission comprising a transmission of the digital data in the first transmission; review said first transmission for errors in said digital data; switch to the secondary channel if said first transmission includes errors in said digital data; and correct said errors in said digital data of said first transmission by extracting missing or damaged packets from the first transmission and replacing the missing or damaged packets using digital data extracted from said second transmission. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of improving the quality of transmissions in a digital communication device including a digital transceiver and a microcontroller interconnected to said digital transceiver, said method comprising:
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selecting a primary channel for receiving a first transmission including digital data; receiving said first transmission including said digital data; checking said first transmission for errors in said digital data; switching to a secondary channel if said digital data includes any errors; receiving a second transmission of said digital data on said secondary channel, the second transmission comprising a transmission of the digital data in the first transmission; and correcting said digital data in said first transmission by extracting missing or damaged packets from the first transmission and replacing the missing or damaged packets with digital data extracted from said second transmission. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A digital communication system, comprising:
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a first intercom including a first microcontroller interconnected to a first digital transceiver; a second intercom including a second microcontroller interconnected to a second digital transceiver; wherein said first and second microcontrollers are programmed to select a primary channel for exchanging transmissions including digital data, to cause first transmissions of said digital data over said primary channel, check said transmissions for errors, to cause second transmissions including said digital data over a secondary channel, and to correct said errors in said digital data received over said primary channel by extracting missing or damaged packets from the digital data received over said primary channel and replacing the missing or damaged packets using digital data extracted from said second transmissions over said secondary channel. - View Dependent Claims (17, 18, 19, 20)
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Specification