USPatentGranted
B2

Standby mode for use in a device having a multiple channel physical layer

Granted 24 Sep 2013 · 8 office actions

Life of the patent

4 dated events
⤢ drag to zoom20042005200620072008200920102011201220132014Prosecution
Prosecutionhover for detail · click to open

Abstract

The present invention provides a way of placing a physical layer device into a standby mode. After a link is established between multiple devices, a determination is made whether the device has data to transmit or whether a standby request was received from a link partner. If a standby request was received or the device has no data to transmit, standby mode is entered. In standby mode, unneeded circuitry is powered down. A transmitter in a channel and a receive path in a separate channel remain powered. While operating in standby mode, the PHY layer continuously transmits a standby code on the one or more channels that are not powered down. Standby mode is discontinued when a transceiver has data to transmit or when energy is detected on the powered down channels. Standby mode is also discontinued when no standby code is received, indicating a disconnect between devices.

Claims

26 · 7 independent · depth 6
1234567891011121314151617181920212223242526
26 granted claims

Classifications

4 codes
IPC · International Patent Classification
Section H — Electricity
  • H04B7/216
USPC · US Patent Classification
370/342370/443370/442

Claim changes

Soon
Coming soonHow the claims changed between publication and grant

See which claims were amended, added or cancelled during examination, with every added and removed word marked.

AmendedAddedCancelledUnchanged

The published claims of this patent are not paired with the granted ones in what we hold.

File wrapper

Pendency
9.2 y
3,371 days filing → grant
Office actions
4
non-final + final
Responses
3
2 RCE
Appeals
2
notices of appeal
Examiner
Barry Taylor
art unit 2646 · TC 2600
Citations: 7 back · 0 forward

See the full prosecution history — every USPTO and applicant action on this file, in order.

Log in to unlock

Term & fees

See the term timeline — pendency span, in-force span, the maintenance fees paid and both computed expiry dates.

Log in to unlock

Priority chain

2 priority documents
Priority
3 Jul 2003
earliest claimed
›Priority documents — 2
TypeDocumentDate
provisionalUS 604843263 Jul 2003
related publicationUS 20050030808 A110 Feb 2005

Validity challenges

See the validity challenges on record — reexaminations, IPRs and PGRs, with their institution decisions and outcomes.

Log in to unlock

Citations

See every patent this one cites and every patent that cites it back — publication, assignee, and how each one was found.

Log in to unlock