1. A semiconductor memory device, comprising:
a bit line sense amplifier configured to amplify a voltage difference between a pair of bit lines;
a sense amplifier driver configured to supply a driving voltage to the bit line sense amplifier so as to enable the bit line sense amplifier, wherein a high voltage for overdriving is supplied at an initial enable stage and thereafter a core voltage is supplied as the driving voltage;
an on die thermal sensor configured to measure temperature to output temperature information; and
a core voltage discharger configured to discharge a core voltage so as to decrease an increased level of the core voltage after an overdriving operation, wherein an amount of discharged current changes as a function of the temperature information.
2. The semiconductor memory device as recited in claim 1, wherein the core voltage discharger determines a discharge time according to the temperature information to discharge the amount of the current.
3. The semiconductor memory device as recited in claim 1, wherein the core voltage discharger includes:
a pulse generation unit configured to generate a plurality of pulse signals having different pulse widths;
a pulse output unit configured to output one of the plurality of pulse signals according to the temperature information; and
a discharge unit configured to be enabled by the pulse signal outputted from the pulse output unit to discharge the core voltage.
4. The semiconductor memory device as recited in claim 3, wherein the plurality of pulse signals are enabled at an end of the overdriving operation.
5. The semiconductor memory device as recited in claim 3, wherein the pulse generation unit performs a logic operation on an input signal, which is activated at an end of the overdriving operation, and a delayed input signal to generate the plurality of pulse signals,
wherein a delay value of the input signal is differently applied according to the plurality of pulse signals.
6. The semiconductor memory device as recited in claim 3, wherein the pulse output unit includes:
a plurality of pass gates configured to receive the plurality of pulse signals, respectively; and
a controller configured to receive the temperature information corresponding to a plurality of flag signals, which are enabled at a predetermined temperature, to control an ONOFF operation of the plurality of pass gates.
7. The semiconductor memory device as recited in claim 6, wherein the plurality of pass gates respectively correspond to the plurality of flag signals, and the controller turns on the pass gates when the flag signals corresponding to the pass gates are enabled.
8. The semiconductor memory device as recited in claim 7, wherein the controller turns off the pass gates when an upper flag signal, which is enabled at higher temperature than the corresponding flag signals, is enabled.
9. The semiconductor memory device as recited in claim 1, wherein the on die thermal sensor includes:
a bandgap unit configured to output a temperature information voltage corresponding to temperature;
an analog-to-digital conversion unit configured to convert the temperature information voltage into a digital code; and
a flag signal generation unit configured to receive the digital code to generate a plurality of flag signals, which are enabled at predetermined temperature.
10. The semiconductor memory device as recited in claim 1, wherein the high voltage is a power supply voltage supplied from an external power supply.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A network component comprising:
a generalized multiprotocol label switching (GMPLS) control plane controller configured to implement a method comprising:
transmitting a message to at least one adjacent control plane controller,
wherein the message comprises a Type-Length-Value (TLV) indicating Routing and Wavelength Assignment (RWA) information,
wherein the TLV comprises a Node Attribute TLV, a Link Set TLV, or both, and
wherein the TLV further comprises at least one sub-TLV indicating additional RWA information.
2. The network component of claim 1, wherein the TLV comprises the Node Attribute TLV and the at least one sub-TLV comprises a connectivity matrix sub-TLV.
3. The network component of claim 2, wherein the connectivity matrix sub-TLV comprises a Link Set object that indicates a list or range of link elements, a directionality for the link elements, and IP addresses associated with the link elements.
4. The network component of claim 1, wherein the TLV comprises the Node Attribute TLV and the at least one sub-TLV comprises wavelength converter pool information.
5. The network component of claim 4, wherein the at least one sub-TLV is selected from the group consisting of a converter accessibility sub-TLV, a wavelength converter range sub-TLV, and a wavelength converter (WC) usage state sub-TLV.
6. The network component of claim 1, wherein the TLV comprises the Link Set TLV and the at least one sub-TLV comprises a port wavelength restrictions sub-TLV.
7. The network component of claim 1, wherein the TLV comprises the Link Set TLV and the at least one sub-TLV comprises an available wavelengths sub-TLV.
8. The network component of claim 1, wherein the TLV comprises the Link Set TLV and the at least one sub-TLV comprises a shared backup wavelengths sub-TLV.
9. The network component of claim 1, wherein the method further comprises implementing a routing flooding protocol to limit a frequency of RWA information updates based on the at least one sub-TLV.
10. The network component of claim 1, wherein the message comprises the Node Attribute TLV with a connectivity matrix sub-TLV and at least one wavelength converter pool sub-TLV, and wherein the message further comprises a Link Set TLV with a port wavelength restrictions sub-TLV, an available wavelengths sub-TLV, and a shared backup wavelengths sub-TLV.
11. The network component of claim 1, wherein the message comprises the Node Attribute TLV with at least one sub-TLV selected from the group consisting of a connectivity matrix sub-TLV, a converter accessibility sub-TLV, a wavelength converter range sub-TLV, and a wavelength converter (WC) usage state sub-TLV, and
wherein the message further comprises the Link Set TLV with at least one sub-TLV selected from the group consisting of a port wavelength restrictions sub-TLV, an available wavelengths sub-TLV, and a shared backup wavelengths sub-TLV
12. A method comprising:
communicating an open shortest path first (OSPF) link state advertisement (LSA) message comprising a Type-Length-Value (TLV) with at least one sub-TLV to a generalized multiprotocol label switching (GMPLS) control plane controller,
wherein the TLV comprises a Node Attribute TLV, a Link Set TLV, or both, and
wherein the TLV further comprises at least one sub-TLV indicating Routing and Wavelength Assignment (RWA) information.
13. The method of claim 12, wherein the TLV comprises the Node Attribute TLV and the at least one sub-TLV comprises a connectivity matrix sub-TLV.
14. The method of claim 12, wherein the TLV comprises the Node Attribute TLV and wherein the at least one sub-TLV comprises wavelength converter pool information.
15. The method of claim 12, wherein the TLV comprises the Link Set TLV and the at least one sub-TLV is selected from the group consisting of a port wavelength restrictions sub-TLV, an available wavelengths sub-TLV, and a shared backup wavelengths sub-TLV.
16. The method of claim 12 further comprising implementing a routing flooding protocol to limit a frequency of RWA information updates from the at least one sub-TLV.
16. An apparatus comprising:
a generalized multiprotocol label switching (GMPLS) control plane controller configured to communicate a link state advertisement (LSA) comprising a Type-Length-Value (TLV) to at least one adjacent control plane controller,
wherein the TLV comprises a Node Attribute TLV, a Link Set TLV, or both, and
wherein the TLV further comprises at least one sub-TLV with Routing and Wavelength Assignment (RWA) information.
17. The apparatus of claim 16, wherein the TLV comprises the Node Attribute TLV and the at least one sub-TLV comprises a connectivity matrix sub-TLV.
18. The apparatus of claim 16, wherein the TLV comprises the Node Attribute TLV and the at least one sub-TLV comprises wavelength converter pool information.
19. The apparatus of claim 16, wherein the TLV comprises the Link Set TLV and the at least one sub-TLV is selected from the group consisting of a port wavelength restrictions sub-TLV, an available wavelengths sub-TLV, and a shared backup wavelengths sub-TLV.
20. The apparatus of claim 16 wherein the control plane controller implements a routing flooding protocol to limit a frequency of RWA information updates based on the at least one sub-TLV.