Notice of Pre-AIA or AIA Status
The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA .
Claim Rejections - 35 USC § 102
The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action:
A person shall be entitled to a patent unless –
(a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention.
Claim(s) 1-15 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Roberts et al. (US 2014/0226984 A1).
Roberts teaches the device engaging in PTP communications with a remote clock (Figure 1, Client Device 16 communicating with Grandmaster Clock 14).
With respect to the claims, references to the prior art appear in parenthesis.
Claims
1. A device in a communications network having a local clock and operatively connected to a remote clock (Roberts, US 2014/0226984 A1, Figure 1, where the client device includes a local clock in paragraph 0029) ,
the device engaging in Precision Timing Protocol (PTP) communications with the remote clock that include an exchange of Sync and Delay Response PTP messages (Delay response packets in paragraph 0080) , the device comprising a processor that modifies at least one of the Sync and Delay Response messages based upon at least one computed average of timing information included in a sequence of the PTP messages (Averaging performed for the PTP algorithms in paragraph 0065, where the client device modifies the time stamp from the grandmaster clock in the delay response packet by a delay value in paragraph 0082) .
2. The device of claim 1 where the local clock is a slave clock and the remote clock is a master clock (Grandmaster clock is a master clock for the slave client device with a local clock synchronized to the grandmaster clock in paragraph 0029) .
3. The device of claim 1 where the processor modifies the at least one of the Sync and Delay Response messages to correct for delay asymmetry between the local clock and the remote clock (Asymmetric delay in paragraph 0082) .
4. The device of claim 3 where the at least one computed average quantifies the delay asymmetry (Averaging performed for the PTP algorithms in paragraph 0065) .
5. The device of claim 1 where the at least one computed average is compared to a threshold (PTP techniques include comparing to a threshold in paragraph 0064, where averaging can be used for the PTP algorithms in paragraph 0065) .
6. The device of claim 1 where the at least one computed average averages a one-way delay from the remote clock to the local clock (Average delay in the downstream packet in paragraph 0110) .
7 The device of claim 1 where the at least one computed average averages a one-way delay from the local clock to the remote clock (Upstream average delay in paragraph 0109) .
8. A method performed by a local clock and operatively connected to a remote clock via a communications network (Roberts, US 2014/0226984 A1, Figure 1, where the client device includes a local clock in paragraph 0029), the method comprising:
exchanging a sequence of Sync and Delay Response PTP messages with the remote clock (Delay response packets in paragraph 0080); computed at least one average of timing information included the sequence of the PTP messages (Averaging performed for the PTP algorithms in paragraph 0065) ; and modifies at least one of the Sync and Delay Response messages based upon the at least one computed average (Averaging performed for the PTP algorithms in paragraph 0065, where the client device modifies the time stamp from the grandmaster clock in the delay response packet by a delay value in paragraph 0082).
9. The method of claim 8 where the local clock is a slave clock and the remote clock is a master clock (Grandmaster clock is a master clock for the slave client device with a local clock synchronized to the grandmaster clock in paragraph 0029).
10. The method of claim 8 including the step of modifying the at least one of the Sync and Delay Response messages to correct for delay asymmetry between the local clock and the remote clock (Asymmetric delay in paragraph 0082) .
11. The method of claim 10 where the at least one computed average quantifies the delay asymmetry (Averaging performed for the PTP algorithms in paragraph 0065) .
12. The method of claim 8 including comparing the at least one computed average to a threshold (PTP techniques include comparing to a threshold in paragraph 0064, where averaging can be used for the PTP algorithms in paragraph 0065) .
13. The method of claim 8 where the at least one computed average averages a one-way delay from the remote clock to the local clock (Average delay in the downstream packet in paragraph 0110).
14 The method of claim 8 where the at least one computed average averages a one-way delay from the local clock to the remote clock (Upstream average delay in paragraph 0109).
15. A device in a network having a local clock and operatively connected to a remote clock (Roberts, US 2014/0226984 A1, Figure 1, where the client device includes a local clock in paragraph 0029), the device engaging in Precision Timing Protocol (PTP) communications with the remote clock that includes an transmission and/or receiving of Sync and Delay Response PTP messages (Delay response packets in paragraph 0080),
the device comprising a processor that modifies at least one of the transmission and/or receiving of Sync and Delay Response messages based upon at least one computed statistical measure of timing information included in a sequence of the PTP messages (Averaging performed for the PTP algorithms in paragraph 0065, where the client device modifies the time stamp from the grandmaster clock in the delay response packet by a delay value in paragraph 0082).
Conclusion
Any inquiry concerning this communication or earlier communications from the examiner should be directed to MELVIN C MARCELO whose telephone number is (571)272-3125. The examiner can normally be reached M-F 9:30-6:00.
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MELVIN C. MARCELO
Primary Examiner
Art Unit 2463
/MELVIN C MARCELO/Primary Examiner, Art Unit 2463 March 21, 2026