US 12,301,193 B2
Pulse filter
Cosmin Iorga, Westlake Village, CA (US); and Ruibing Zhang, West Hills, CA (US)
Assigned to Rambus Inc., San Jose, CA (US)
Filed by Rambus Inc., San Jose, CA (US)
Filed on Aug. 22, 2023, as Appl. No. 18/236,857.
Claims priority of provisional application 63/426,975, filed on Nov. 21, 2022.
Claims priority of provisional application 63/403,728, filed on Sep. 3, 2022.
Prior Publication US 2024/0080016 A1, Mar. 7, 2024
Int. Cl. H03H 11/04 (2006.01)
CPC H03H 11/04 (2013.01) 20 Claims
OG exemplary drawing
 
1. An integrated circuit, comprising:
an input buffer having a first input coupled to an input node to receive an input signal having a plurality of pulse widths and to produce a buffer output;
a slicer having a slicer input, a slicer output signal, and slicer threshold adjustment circuitry to control a boundary for the slicer input meeting a first threshold condition that is to cause the slicer to output a first slicer output signal value and the slicer input meeting a second threshold condition that is to cause the slicer to output a second slicer output signal value;
a resistor-capacitor charging-discharging circuit coupled between the buffer output and the slicer input, the resistor-capacitor charging-discharging circuit calibrated to a first time constant based on timing information;
charging and discharging circuitry to charge and discharge a capacitance of the resistor-capacitor charging-discharging circuit based on the input signal and the slicer output signal value; and
pulse with adjustment circuitry coupled to the slicer.