Home Internet of Things Aerospace Apparel Energy Defense Health Care Logistics Manufacturing Retail

Ask The Experts Forum

BlogsAsk The Experts ForumDoes Pulse Interval Encoding Allow Greater Power Transfer Than Manchester Encoding in Passive Tags?

Does Pulse Interval Encoding Allow Greater Power Transfer Than Manchester Encoding in Passive Tags?

Posted By RFID Journal, 12.19.2012
Does PIE encoding emit more or fewer pulses of energy than Manchester encoding?

—Name withheld

———
Pulse interval encoding (PIE) is a method of transmitting data to an RFID tag by emitting pulses of energy at varying intervals, in order to indicate the ones and zeroes of binary code stored on that tag. To answer your question, I reached out to Steve Halliday, the president of consulting firm High Tech Aid, who is an expert on RFID standards and the encoding schemes they use. Here is Steve's reply:

"As always, the answer is complicated. The short answer is yes. A PIE data-0 symbol provides the same power transfer as a Manchester symbol. A PIE data-1 symbol provides greater power delivery than a Manchester symbol. So, therefore, if a waveform mixes 0s and 1s, then a tag will get more power with PIE than with Manchester."

—Mark Roberti, Founder and Editor,
RFID Journal

Login and post your comment!

Not a member?

Signup for an account now to access all of the features of RFIDJournal.com!

Next Post
Who Made My Car's RFID Alarm System?
Previous Post
If I Inserted an RFID Tag in a Metal or ...
PREMIUM CONTENT
Case Studies Features Best Practices How-Tos
RFID JOURNAL EVENTS
Live Events Virtual Events Webinars
ASK THE EXPERTS
Simply enter a question for our experts.
TAKE THE POLL
JOIN THE CONVERSATION ON TWITTER
Loading
RFID Journal LIVE! RFID in Health Care LIVE! LatAm LIVE! Brasil LIVE! Europe RFID Connect Virtual Events RFID Journal Awards Webinars Presentations
© Copyright 2002-2016 RFID Journal LLC.
Powered By: Haycco