Signal re-driving device, data storage system and mode control method
AssigneePhison Electronics Corp.
InventorsPo-Jung Chou, Sheng-Wen Chen, Chung-Kuang Chen
Life of this patent
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Abstract
A signal re-driving device, a data storage system and a mode control method are provided. The method includes the following steps. A first signal is received via a receiving circuit of the signal re-driving device. An analog signal feature is detected the receiving circuit. A first mode is entered according to the analog signal feature. The first signal is modulated and a second signal is outputted in the first mode. The second signal is sent via a sending circuit of the signal re-driving device. A digital signal feature is detected via the receiving circuit. And, the first mode is switched to a second mode according to the digital signal feature.
Claims30
A signal re-driving device, comprising:
- a receiving circuit;
- a modulation circuit, coupled to the receiving circuit;
- a sending circuit, coupled to the modulation circuit;
- and
- a mode control circuit, coupled to the receiving circuit and the modulation circuit,
- wherein the receiving circuit is configure to receive a first signal,
- the mode control circuit is configured to detect an analog signal feature via the receiving circuit and control the modulation circuit to enter a first mode according to the analog signal feature,
- the modulation circuit is configured to modulate the first signal and output a second signal in the first mode,
- the sending circuit is configured to send the second signal, and
- the mode control circuit is further configured to detect a digital signal feature via the receiving circuit and control the modulation circuit to switch from the first mode to a second mode according to the digital signal feature,
- wherein the first mode is a normal operating mode and the second mode is an energy-saving mode or a standby mode.
A data storage system, comprising:
- a processing device;
- a memory storage device;
- and
- a signal re-driving device, coupled between the processing device and the memory storage device, wherein the signal re-driving device is configured to:
- receive a first signal from the processing device via a receiving circuit in the signal re-driving device,
- detect an analog signal feature via the receiving circuit and enter a first mode according to the analog signal feature,
- modulate the first signal and output a second signal in the first mode,
- send the second signal to the memory storage device via a sending circuit in the signal re-driving device, and
- detect a digital signal feature via the receiving circuit and switch from the first mode to a second mode according to the digital signal feature,
- wherein the first mode is a normal operating mode and the second mode is an energy-saving mode or a standby mode.
A mode control method, applicable to a signal re-driving device, the mode control method comprising:
- receiving a first signal via a receiving circuit of the signal re-driving device;
- detecting an analog signal feature via the receiving circuit;
- entering a first mode according to the analog signal feature;
- modulating the first signal and outputting a second signal in the first mode;
- sending the second signal via a sending circuit of the signal re-driving device;
- detecting a digital signal feature via the receiving circuit;
- and
- switching from the first mode to a second mode according to the digital signal feature,
- wherein the first mode is a normal operating mode and the second mode is an energy-saving mode or a standby mode.
Dependencies are inferred from the claim text.