METHOD AND SYSTEM OF PLACING A RFID TAG IN A CONTINUOUS TRANSMISSION MODE
Method and system of placing a RFID tag in a continuous transmission mode. At least some of the illustrative embodiments are methods comprising sending a command from a radio frequency identification (RFID) reader to a first RFID tag, and then transmitting continuously by the first RFID tag based on the command. Other illustrative embodiments are RFID tags comprising a tag antenna, and a RFID circuit coupled to the tag antenna. The RFID circuit is configured to, responsive to a first command from a RFID reader, repeatedly transmit a message to the RFID reader.
1 . A method comprising:
sending a command from a radio frequency identification (RFID) reader to a first RFID tag; and then
transmitting continuously by the first RFID tag based on the command.
2 . The method according to claim 1 wherein transmitting further comprises transmitting by the first RFID tag for a predetermined period of time.
3 . The method according to claim 2 wherein sending the command further comprises sending the command comprising a value indicative of the predetermined period of time.
4 . The method according to claim 1 wherein transmitting further comprises repetitively transmitting a predetermined number of data value bursts by the first RFID tag.
5 . The method according to claim 4 wherein sending the command further comprises sending the command comprising a value indicative of the predetermined number of bursts.
6 . The method according to claim 1 further comprises transmitting one or more selected from the group consisting of: an electronic product code stored in the first RFID tag; a random number; and a value from memory of the first RFID tag.
7 . The method according to claim 1 wherein sending the command further comprises sending the command comprising a value identifying the first RFID tag.
8 . The method according to claim 1 further comprising causing a second RFID tag to be in a non-communicative state.
9 . The method according to claim 1 further comprising sending a command to silence a second RFID tag.
10 . The method according to claim 1 further comprising:
receiving the command by a second RFID tag;
decoding the command to determine whether to command is directed to the second RFID tag.
11 . A system comprising:
a reading antenna;
a radio frequency identification (RFID) reader coupled to the reading antenna;
wherein the RFID reader is configured send a command to a first RFID tag, the command places the first RFID tag in a repeating transmission mode.
12 . The system according to claim 11 wherein when the RFID reader sends the command the RFID reader is further configured to send a value indicative of a length of time which the first RFID tag remains in the repeating transmission mode.
13 . The system according to claim 11 wherein when the RFID reader sends the command the RFID reader is further configured to send a value indicative of a number of times the first RFID tag should repeat transmission.
14 . The system according to claim 11 wherein, prior to sending the command, the RFID reader is configured to determine identity of the first RFID tag.
15 . The system according to claim 11 wherein the RFID reader is configured to send the command comprising tag identifier that identifies the first RFID tag.
16 . The system according to claim 11 wherein the RFID reader is further configured to communicatively isolate the first RFID tag from among a plurality of RFID tags.
17 . The system according to claim 16 wherein the RFID reader is further configured to force a slot counter of other RFID tags to a non-zero value.
18 . A radio frequency identification (RFID) tag comprising:
a tag antenna;
a RFID circuit coupled to the tag antenna;
wherein the RFID circuit is configured to, responsive to a first command from a RFID reader, repeatedly transmit a message to the RFID reader.
19 . The RFID tag according to claim 18 wherein the RFID tag is further configured to repeatedly transmit the message for a predetermined period of time.
20 . The RFID tag according to claim 18 wherein the RFID tag is further configured to repeatedly transmit the message for period of time indicated by the command.
21 . The RFID tag according to claim 18 wherein the RFID tag is further configured to transmit the message a predetermined number of times.
22 . The RFID tag according to claim 18 wherein the RFID tag is further configured to transmit the message a predetermined number of times indicated by the command.
23 . The RFID tag according to claim 18 wherein the RFID tag is configured to repeatedly transmit the message being one or more selected from the group consisting of: an electronic product code stored in the RFID tag; a random number; and a value from memory of the RFID tag.
24 . The RFID tag according to claim 18 wherein the RFID tag is further configured to, responsive to a second command from a RFID reader, refrain from transmitting.