Short Range Communication Service TRIZ Cases
- UWB Communication Node for Secure Contention-Based Ranging
Using a common encryption key plus responder-specific decryption keys, this UWB approach limits impersonation and interference during contention-based ranging.
- Movable Illumination Assembly for Mobile Low-Light Image Capture
Low-light capture uses a movable illumination assembly to direct front or rear light, improving luminance and brightness for mobile images.
- Device-Level Passcode Vault for Automated Cross-Device Login
A device-level passcode unlocks a vault that retrieves credentials over short-range wireless links for automated logins.
- Touch Array Segmentation With Sub-Hosts For Active Pen Recognition
Segmented sub-hosts process position data from touch objects in parallel, helping fast displays recognize fingers and active pens reliably.
- Overlapping R2D and D2R Frequency Resources in Access Procedures
Overlapping R2D and D2R resources streamline random access while separating transmissions in time to limit interference.
- Bluetooth Channel Sounding for Distance-Based Device Locking
RSSI-based distance errors can trigger false locks; BLE Channel Sounding measures paired-device separation before invoking a lock screen.
- BLE Device Deployment With Encrypted Segmented Messaging
Encrypted BLE messages automate mass device deployment without open Wi-Fi access points or one-by-one manual setup.
- Dolly Identification via Wireless Pairing for Load Tracking
Wireless transceivers pair each dolly with a towing vehicle to track loads and coupling status when line of sight is blocked.
- Time-Based Medical Bed Pairing with Wall Unit Plug Detection
AC plug sensors and independent timers pair a medical bed with the correct wall unit despite RF interference and multiple receptions.
- Touchscreen Input Recognition with Color-Signal Stylus Timing
An electronic pen emits a target color signal while timed touchscreen coordinates distinguish stylus events from hand touches.