US 11,057,675 B2Granted

Media streaming device and protection method of the same

AssigneeRealtek Semiconductor Corp.

InventorsChao-Min Lai, Chien-Liang Chen

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Abstract

A media streaming device is provided that includes a media streaming module, a super capacitor and a protection module. The media streaming module provides the media stream. The super capacitor has a first terminal coupled to a power-supplying path and a second terminal coupled to a ground terminal. The protection module includes a current limiter and a disabling unit. The current limiter receives a power signal and performs current-limiting to generate a fixed-current power to charge the super capacitor and supply power to the media streaming module through the power-supplying path. The current limiter further detects a voltage of the first terminal of the super capacitor. The disabling unit disables the media streaming module when the voltage of the first terminal of the super capacitor is not higher than a voltage threshold value, and enables the media streaming module when the voltage is higher than the voltage threshold value.

Claims8

Dependent claims

A media streaming device electrically comprising:

a media streaming module comprising a reset unit;
a super capacitor having a first terminal electrically coupled to the media streaming module and a second terminal electrically coupled to a ground terminal;
and
a protection module comprising:
a current limiter electrically coupled to the first terminal of the super capacitor, the current limiter configured to receive a power signal to power on the media streaming device and perform current-limiting on the power signal to generate a fixed-current power to charge the super capacitor;
and
a disabling circuit configured to disable the media streaming module after the media streaming device is powered on and until the super capacitor is charged to a voltage higher than a predetermined voltage threshold, and configured to transmit a control signal to the reset unit such that the reset unit resets the media streaming module to disable the media streaming module when the voltage of the super capacitor is not higher than the predetermined voltage threshold after the media streaming device is powered on, and configured to stop transmitting the control signal to the reset unit when the voltage of the super capacitor is higher than the predetermined voltage threshold;
wherein the media streaming module is started-up by the fixed-current power for processing media data in a form of a media stream and transmitting the media stream to a media playback device after the disabling circuit stops disabling the media streaming module.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/208,788Filed 4 Dec 2018
Priority: TW 1071193675 Jun 2018
Published: US 2019/0373317 A15 Dec 2019
Granted: 6 Jul 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04N 21/4436
OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB: power management, e.g. shutting…
G06F 1/28
Power supply means, e.g. regulation thereof: supervision thereof, e.g. detecting power-supply failure by out of limits supervision
G06F 1/30
Power supply means, e.g. regulation thereof: means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
G06F 1/3203
Means for saving power: power management, i.e. event-based initiation of a power-saving mode