TRANSCODER APPARATUS AND METHODS

• US 20110037561A1
• Filed: 08/13/2008
• Published: 02/17/2011
• Est. Priority Date: 08/13/2007
• Status: Abandoned Application

• Current Assignee: Linx Technologies Inc (TE Connectivity Limited)
• Original Assignee: Linx Technologies Inc (TE Connectivity Limited)
• Inventors: True, Paul LeeRoy, Carpenter, Ammon Joseph, Hopper, Justin Garrett, Murphy, Chris Reed
• Application Number:
  US12/668,660
• Publication Number:
  US 20110037561A1
• Time in Patent Office: Days
• US Class Current: 340/5.7
• CPC Class Codes: H04L 12/10 Current supply arrangements

Abstract

Embodiments of methods, systems and devices including encoders and decoders are disclosed.

Claims

1. An apparatus operable to perform the combined functions of a remote control encoder and decoder.

2. The apparatus of claim 1, comprising one or more status I/O lines, the apparatus being operable to set an address by randomizing a number based on a time that a status I/O line is held in a predetermined electrical state.

3. The apparatus of claim 1, comprising one or more status I/O lines, the direction of the status I/O lines being operable to be dynamically programmable.

4. The apparatus of claim 1, further comprising a memory, the apparatus being operable to learn an address of another transcoder apparatus that is operable to perform the combined functions of a remote control encoder and decoder, and operable to store a list of authorized addresses in the memory.

6. The apparatus of claim 1, further comprising one or more status I/O lines and a memory operable to store a set of control permissions for each user, wherein the set of control permissions determine how the apparatus responds to the reception of a valid command, either allowing or not allowing the activation of one or more of the one or more status I/O lines.

7. The apparatus of claim 1, being operable for affecting an automatic confirmation transmission in response to a command transmission.

42. The apparatus of claim 1, further comprising:

a switch unit;

a transcoder; and

a transceiver, the transcoder comprising one or more status line inputs in electrical communication with the switch unit and one or more status line outputs operable for electrical communication with application circuitry, the transcoder and transceiver in electrical communication by a data transmission I/O line, the switch unit comprises one or more switches in electrical communication with the status line inputs, the switches operable for providing an open or closed electrical state to the transcoder communicated via respective status line inputs, the transcoder being operable to generate a command data packet representative of the electrical states of the status line inputs, the transceiver is operable to affect wireless transmission of the command data packet to another transceiver, the transceiver operable to receive and communicate a wireless transmission of a command data packet to the transcoder, the transcoder being operable to control application circuitry based on a received command data packet.

43. The apparatus of claim 1, comprising a first transcoder product and a second transcoder product, the first transcoder product comprising:

a first switch unit;

a first transcoder; and

a first transceiver, the first transcoder comprising one or more first status line inputs in electrical communication with the first switch unit and one or more first status line outputs operable for electrical communication with first application circuitry, the first transcoder and first transceiver in electrical communication by a first data transmission I/O line, the first switch unit comprising one or more switches in electrical communication with the first status line inputs, the switches operable for providing an open or closed electrical state to the first transcoder communicated via respective status line inputs, the first transcoder being operable to generate a command data packet representative of the electrical states of the first status line inputs,

the second transcoder product comprising;

a second switch unit;

a second transcoder; and

a second transceiver, the second transcoder comprising one or more second status line inputs in electrical communication with the second switch unit and one or more second status line outputs operable for electrical communication with second application circuitry, the second transcoder and second transceiver in electrical communication by a second data transmission I/O line, the second switch unit comprising one or more switches in electrical communication with the second status line inputs, the switches operable for providing an open or closed electrical state to the second transcoder communicated via respective status line inputs, the second transcoder being operable to generate a command data packet representative of the electrical states of the second status line inputs,

the first transceiver being operable to affect wireless transmission of the command data packet to the second transceiver, the second transceiver operable to receive and communicate the wireless transmission of the command data packet to the second transcoder, the second transcoder being operable to control second application circuitry based on the received command data packet.

5. (canceled)

8. (canceled)

10. (canceled)

12-13. -13. (canceled)

14. A transcoder operable to function as an encoder and decoder, the transcoder comprising one or more status line inputs and status line outputs, the transcoder operable to target another transcoder so that only a targeted transcoder will respond to a command transmission.

9. The apparatus of claim 14, comprising a memory, the transcoder being operable to set individual output lines as latched or momentary based on a mask which may be set by a user and stored in the memory.

11. The apparatus of claim 14, being operable to output an identification of the transcoder.

15. The apparatus of claim 14, being operable to send custom, user defined data.

16-19. -19. (canceled)

20. A method of operating a system comprising a first transcoder and a second transcoder, each of the first transcoder and second transcoder operable to function as an encoder and decoder, each of the first transcoder and second transcoder comprising a memory, one or more status I/O lines, a data transmission I/O line, each of the first transcoder and second transcoder being operable to generate a command data packet representative of electrical states of the status line inputs, the method comprising:

recording the electrical state of first status I/O lines that are programmed to be status line inputs as binary data;

combining the binary data with a unique identifier to form a command data packet; and

encoding the command data packet for security such that only another transcoder that is provided with a correct means is able to decode and validate the binary data contained in the command data packet.

21. The method of claim 20, further comprising:

creating an address including reading a current address stored in memory on the first transcoder;

running a randomizing algorithm for a time that an input is held in a first state; and

writing to the memory the resulting address when the input is held in a second state.

23. The method of claim 20, further comprising:

associating the first transcoder with the second transcoder by holding a status I/O line programmed as line an input in a first state on the second transcoder to place it into a learn mode;

sending a command data packet comprising an address associated with the first transcoder from the first transcoder and received by the second transcoder; and

storing the received address in memory on the second transcoder.

24. The method of claim 20, further comprising:

pulling a transceiver control line referred to as the TR_PDN line to a first state to activate an external transceiver;

starting a timer in the second transcoder;

checking the logic state of one of its input lines, referred to as the CRT/LRN line;

saving the received address in memory if the CRT/LRN line is held in a first state;

checking for valid packets by the second transcoder if the CRT/LRN line is held in a second state;

checking to see if the timeout timer has expired by the second transcoder on the second transcoder if there are no valid packets;

checking to see if the packet is intended for the second transcoder by the second transcoder if there are valid packets;

checking to see if the target address matches its local address by the second transcoder if the packet is targeted;

checking to see if the target address matches its local address by the second transcoder if the target address does not match;

checking to see if the timeout timer has expired;

saving and updating the control permissions if the target address matches or if the packet is not targeted;

checking to see if the automatic confirmation is enabled and, if so, pulling a transceiver control line referred to as the TR_SEL line to a first state to place an external transceiver into transmit mode;

making the TR_DATA line an output so that it can send data packets to the transceiver;

outputting a confirmation packet on the TR_DATA line;

pulling the TR_SEL line to a second state to place the transceiver into receive mode;

making the TR_DATA line an input so that it can receive data from the transceiver;

checking to see if the timeout timer has expired;

looping back to check if the CRT/LRN line is in the first state if not;

saving the received address in memory if the timeout timer has expired; and

saving by the transcoder all activated status lines as the control permissions.

30. The method of claim 20, wherein the transcoder being in electrical communication with a transceiver, further comprising a method of sending a transmission comprising:

pulling a TR_PDN line to a first state to turn on the transceiver;

pulling a TR_SEL line to a first state to place the transceiver into transmit mode;

making a TR_DATA line an output so that it can send data to the transceiver;

checking, by the transcoder, the logic state of the status line inputs;

creating the command byte;

reading, by the second transcoder, the local address, target address, and custom data value from memory;

assembling the data packet consisting of a preamble, a local Address, and a Command Byte;

adding, by the second transcoder, the target address to the data packet if targeting is enabled;

checking to see if custom data is enabled if targeting is not enabled;

adding, by the second transcoder, the custom data value to the data packet if custom data is enabled;

outputting the data packet on the TR_DATA line if custom data is not enabled;

pulling, by the transcoder, the TR_SEL line to a second state to place the transceiver into receive mode;

making the TR_DATA line an input;

starting a timer;

waiting in a loop, by the second transcoder, until either the timer times out or a valid confirmation data packet is received;

pulling, by the transcoder, the TR_SEL line to a first state to place the transceiver into transmit mode and making the TR_DATA line an output so that it can send data to the transceiver when the timer times out;

checking, by the second transcoder, to see if any status line inputs are in the first state;

getting, by the second transcoder, the command byte and starting the loop again if any status line inputs are in the first state;

exiting the mode if no status line inputs are high;

pulling, by the second transcoder, the TR_SEL line to the first state to place the transceiver into transmit mode and making the TR_DATA line an output so that it can send data to the transceiver if a valid confirmation packet is received;

pulling, but buy the second transcoder, the CONFIRM line to the first state, resetting the timer, and checking to see if any status line inputs are high if the confirmation is valid;

getting the command byte and starting the loop again if any status line inputs are in the first state; and

exiting the mode if no status line inputs are in the first state.

31. The method of claim 20, further comprising:

looking, by the second transcoder, for any valid data packets;

checking, by the second transcoder, to see if a RX Mode timer has timed out if no valid data packets are received;

checking, by the second transcoder, to see if the second transcoder is in Open Reception mode if the transcoder receives valid data packets;

skipping checking to see if the address is authorized if the second transcoder is in Open Reception mode;

checking to see if the received address is in memory on the second transcoder and is authorized to activate the second transcoder if the second transcoder is not in Open Reception mode;

checking to see if a RX Mode timer has timed out if the address is not authorized;

checking to see if received data packet is a targeted packet intended for the second transcoder;

checking to see if a second transcoder local address matches a target address in a received data packet if the data packet is targeted;

checking to see if the RX Mode timer has timed out if the received target address does not match the local address;

making a SER_IO line an output and pulling it to a first state if the received data packet is not targeted, or if the local address matches the target address;

performing a logical AND operation with the Command Byte and the Control Permissions to get the Control Byte, thereby removing the activations of any status lines that are not authorized for control by the first transcoder;

performing a logical AND operation between the received Command Byte and the I/O Assignment to get the Output Byte;

outputting the Output Byte on the status lines if Latch mode is not enabled;

performing a logical XOR (exclusive OR) operation on the Output Byte and the current logical states of the status line outputs if Latch mode is enabled;

outputting the resulting Output Byte on the status line outputs;

outputting the received address, the received Command Byte, and any received custom data on the SER_IO line if the second transcoder is in Open Reception mode;

outputting the first transcoder ID, the received Command Byte, and any received custom data on the SER_IO line if the second transcoder is not in Open Reception mode;

resetting the RX Mode time and looping back to check for any more valid data packets if the automatic confirmation is not enabled;

pulling the TR_SEL line to a first state to place the transceiver into transmit mode and making the TR_DATA line an output so that the first transcoder can send data to the transceiver if the automatic confirmation is enabled;

outputting the confirmation packet on the TR_DATA line, pulling the TR_SEL line to a second state to place the transceiver into receive mode, and making the TR_DATA line an input such that it can get data from the transceiver;

resetting the RX Mode timer and looping back to look for more packets;

disallowing a received address to activate the second transcoder if no valid data packets are found or the received target address does not match the local address;

checking, by the second transcoder, to see if the RX Mode timer has expired;

exiting the mode; and

looping back and looking for more data packets if the timer has not expired.

33. The apparatus of claim 65, further comprising:

a switch unit;

an encoder including one or more encoder input lines in electrical communication with the switch unit; and

a first transceiver in electrical communication with the encoder, the switch unit including one or more switches operable for providing an open or closed electrical state to the encoder communicated via an encoder input line, the encoder being operable to generate a data packet representative of that electrical state, the encoder operable to communicate the command data packet to the first transceiver, the first transceiver being operable to affect wireless transmission of the command data packet.

65. The method of claim 20 further comprising:

programming the status I/O lines to be status line outputs on the second transcoder that are set to replicate the electrical state of the status line inputs on the first transcoder upon successful recovery and validation of the binary data from the command data packet.

22. (canceled)

25-29. -29. (canceled)

32. (canceled)

34-41. -41. (canceled)

44-64. -64. (canceled)