IP Library Granted Patent US 9,723,580
Granted Patent B2
US 9,723,580 · App. 14/186,852 · Granted Aug 1, 2017

Synchronization of audio channel timing

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 9,723,580
App. No.
14/186,852
Granted
Aug 1, 2017
Kind
B2
Abstract

Synchronization of plural outputs of data transported by a wireless network is facilitated by bandlimiting a sample clock signal controlling a rate at which data is processed by the network's devices and/or bandlimiting wall time data controlling the real time for presenting a datum.

Claims (27)

1. An audio system comprising:

(a) a first listener including:

(i) a wall clock maintaining a wall time for occurrence of an event, said wall time updated by data transmitted by a master clock and received by said first listener;

(ii) a sample clock recoverer retrieving a sample clock from data received by said first listener from a talker, said sample clock regulating a processing rate for a datum included in said data received from said talker; and

(iii) a frequency filter bandlimiting said sample clock output by said sample clock recoverer; and

(iv) a transmitter transmitting said bandlimited sample clock; and

(b) a second listener arranged to receive said transmitted bandlimited sample clock and use said bandlimited sample clock to regulate processing data received from said talker; wherein said frequency filter comprises a low band width type 2 phase locked loop connected to receive said sample clock output by said sample clock recoverer.

2. An audio system comprising:

a first listener including:

a wall clock maintaining a wall time for occurrence of an event, said wall time updated by data transmitted by a master clock and received by said first listener;

a sample clock recoverer retrieving a sample clock from data received by said first listener from a talker, said sample clock regulating a processing rate for a datum included in said data received from said talker; and

a frequency filter bandlimiting said sample clock output by said sample clock recoverer; and

a transmitter transmitting said bandlimited sample clock; and a second listener arranged to receive said transmitted bandlimited sample clock and use said bandlimited sample clock to regulate processing data received from said talker; wherein the first listener further comprises a frequency filter attenuating a frequency of said updating data received from said master clock.

3. The audio system of claim 2 wherein said updating data received from said master clock comprises a timing synchronization function datum.

4. The audio system of claim 2 wherein said updating datum received from said master clock comprises a precision time protocol datum.

5. An audio system comprising:

(a) a first listener including:

(i) a wall clock maintaining a wall time for occurrence of an event, said wall time updated by a data transmitted by a master clock and received by said first listener;

(ii) a frequency filter bandlimiting said updating data received from said master clock and said wall time;

(iii) a sample clock recoverer retrieving a sample clock from data received by said first listener from a talker, said sample clock regulating a processing rate for a datum included in said data received from said talker;

(iv) a transmitter transmitting said bandlimited wall time; and

(v) a frequency filter attenuating a frequency of said updating data received from said master clock;

(b) a second listener arranged to receive said bandlimited wall time and to use said bandlimited wall time to recover a sample clock from data received from said talker.

6. The audio system of claim 5 wherein said frequency filter comprises a low band width phase locked loop arranged to receive said updating data received from said master clock.

7. The audio system of claim 5 wherein said updating data received from said master clock comprises a timing synchronization function datum.

8. The audio system of claim 5 wherein said updating datum received from said master clock comprises a precision time protocol datum.

9. The audio system of claim 5 wherein said frequency filter comprises a low band width type 2 phase locked loop arranged to receive said updating data received from said master clock.

Assignments (7)
CHANGE OF NAME Recorded Mar 13, 2025
From: WISA TECHNOLOGIES, INC.
To: DATAVAULT AI INC.
Reel/Frame 070514/0711 →
CHANGE OF NAME Recorded Jun 2, 2022
From: SUMMIT WIRELESS TECHNOLOGIES, INC.
To: WISA TECHNOLOGIES INC.
Reel/Frame 060256/0714 →
CHANGE OF NAME Recorded Dec 12, 2018
From: SUMMIT SEMICONDUCTOR, INC.
To: SUMMIT WIRELESS TECHNOLOGIES, INC.
Reel/Frame 048961/0420 →
SECURITY INTEREST Recorded Dec 7, 2017
From: SUMMIT SEMICONDUCTOR, LLC
To: ALEXANDER CAPITAL, LP
Reel/Frame 044332/0489 →
SECURITY INTEREST Recorded Jul 25, 2017
From: SUMMIT SEMICONDUCTOR, LLC
To: MARCORP FINANCIAL, LLC, AS AGENT
Reel/Frame 043089/0550 →
SECURITY INTEREST Recorded Jan 15, 2015
From: SUMMIT SEMICONDUCTOR LLC, A DELAWARE LIMITED LIABILITY COMPANY
To: MERIWETHER MEZZANINE PARTNERS, L.P., A DELAWARE LIMITED PARTNERSHIP
Reel/Frame 034726/0735 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 21, 2014
From: BOEHLKE, KENNETH A.
To: SUMMIT SEMICONDUCTOR LLC
Reel/Frame 032273/0268 →