Abstract: An input/output (“I/O”) port control system is provided. The system can include an I/O controller (110) comprising a power input (115) and an operably connected I/O interface (120). A power supply (150) and switch (130) can be operably connected to the power input. A detector (140) can be operably connected to the I/O interface and to the switch. The detector can be adapted to close the switch when an electrical circuit is completed through the I/O interface.

Abstract: Interface systems and methods are provided. An interface system can include a first isolator (200) and a second isolator (300) coupled to a modular interface (110). The interface can include a plurality of conductors (120). The first isolator can be coupled to a first signal format compliant first input/output (I/O) device (130). The second isolator can be coupled to a second signal format compliant second I/O device (140). The first isolator can pass a first signal format compliant signal to, and suppress the reflection of at least a portion of a second signal format compliant signal from, the first I/O device. The second isolator can at least partially block a first signal format compliant signal from, and to pass a second signal format compliant signal to, the second I/O device.

Abstract: An electronic device is provided, the electronic device having an anti-theft interface. If damage to the anti-theft interface is detected, the electronic device enters a user authentication mode.

Abstract: A system for monitoring a connection to an active pin of an integrated circuit (IC) die, includes an input/output (I/O) cell of an IC die, where the I/O cell is bonded to a bonding pad on a ball grid array (BGA) substrate. The system includes a test point on a printed circuit board (PCB) coupled to the bonding pad which forms an electrical/conductive pathway between the test point and the I/O cell. The system includes a clock waveform injected through a resistor into the test point.

Abstract: Interface systems and methods are provided. An interface system can include a first isolator (200) and a second isolator (300) coupled to a modular interface (110). The interface can include a plurality of conductors (120). The first isolator can be coupled to a first signal format compliant first input/output (I/O) device (130). The second isolator can be coupled to a second signal format compliant second I/O device (140). The first isolator can pass a first signal format compliant signal to, and suppress the reflection of at least a portion of a second signal format compliant signal from, the first I/O device. The second isolator can at least partially block a first signal format compliant signal from, and to pass a second signal format compliant signal to, the second I/O device.

Abstract: An input/output (“I/O”) port control system is provided. The system can include an I/O controller (110) comprising a power input (115) and an operably connected I/O interface (120). A power supply (150) and switch (130) can be operably connected to the power input. A detector (140) can be operably connected to the I/O interface and to the switch. The detector can be adapted to close the switch when an electrical circuit is completed through the I/O interface.

Abstract: A system for monitoring a connection to an active pin of an integrated circuit (IC) die, includes an input/output (I/O) cell of an IC die, where the I/O cell is bonded to a bonding pad on a ball grid array (BGA) substrate. The system includes a test point on a printed circuit board (PCB) coupled to the bonding pad which forms an electrical/conductive pathway between the test point and the I/O cell. The system includes a clock waveform injected through a resistor into the test point.

Abstract: An electronic device is provided, the electronic device having an anti-theft interface. If damage to the anti-theft interface is detected, the electronic device enters a user authentication mode.

Abstract: A system for calibrating a digitizing pen applies a known actual pen force to a tip of the digitizing pen, infers an indicated pen force from a pen force signal sent by the digitizing pen, and computes a correction, based on the actual and indicated pen forces, to be applied to a future indicated force reading.

Abstract: A system for calibrating a digitizing pen applies a known actual pen force to a tip of the digitizing pen, infers an indicated pen force from a pen force signal sent by the digitizing pen, and computes a correction, based on the actual and indicated pen forces, to be applied to a future indicated force reading.