June 2024 Vol. 22 No. 662024

https://www.ntt-review.jp/archive/2024/202406.html

View from the Top
Sachiko Oonishi, Executive Vice President, Head ofResearch and Development Market Strategy, NTTCorporation

Front-line Researchers
Tomoharu Iwata, Senior Distinguished Researcher, NTT
Communication Science Laboratories

View from the Top

Sachiko Oonishi, Executive Vice President, Head of Researchand Development Market Strategy, NTT Corporation▼Abstract

In 2023, the Research and Development Market Strategy Division was establishedat NTT Corporation. Its mission is to create new value by combining research anddevelopment on the basis of the conventional product-out approach with marketing
while being committed to creating an exciting future. We asked Sachiko Oonishi,
NTT executive vice president, head of Research and Development Market Strategy,
about the Division and her mindset as a top executive.

Feature Articles
Revolutionizing Living and Working Spaces with Personalized Sound Zone

Development of a Personalized Sound Zone and Future
Outlook

Rising Researchers▼Abstract

Daisei Uchida, Distinguished Researcher, NTT AccessNetwork Service Systems Laboratories

Personalized Sound Zone (PSZ) is the ultimatesound space that enables a world in which one
hears only the sounds one wants to hear andothers hear only the sounds that one wants them tohear. It will enable new lifestyles in which people
can enjoy work and entertainment experiences
regardless of location, provide a new acoustic
experience by merging real space and virtual
sound space, enable self-driving cars in whichpeople seated apart from each other can
comfortably have conversations in a space as quiet
as a living room, and improve the quality of life byenhancing hearing ability. These Feature Articles
introduce the challenges involved in achieving PSZ.

Feature Articles
Revolutionizing Living and Working Spaces with
Personalized Sound Zone
Development of a Personalized Sound Zone and Future Outlook
PSZ Spot-sound-reproduction Technology: New Sound-confinement Method Using
Opposite-phase Sound Waves
Acoustic XR Technology Merging Real and Virtual Sounds
PSZ Active Noise Control and Desired Sound Selection Technologies for Creating a Comfortable
and Safe Sound Environment in Vehicle Cabins
NTT sonority’s Pursuit of Innovation—New Businesses That Leverage PSZ and MAGIC FOCUS
VOICE Technologies

Regular Articles
Millimeter-wave-based Drone Automatic Landing-guidance System for Advanced MaritimeOperations

Global Standardization Activities
Recent Trends in GlobalPlatform: Digital Trust – Evaluation & Certification, Trusted Execution
Environment, and Digital Identity –Practical Field Information about Telecommunication Technologies
Case Studies of Telecommunication Problems Caused by Conducted Disturbance in AC PowerLines

Acoustic XR technology
Fusion of physical and cybersound spaces

edesirUndnds

souActive noise control
technology
Block undesired sounds

redDesinds
souSpot-sound reproduction
technology
Reproduce sounds only withina fixed range

Desired sound selection
technology
Identify desired and undesired sounds
and filter accordingly

Regular Articles

Millimeter-wave-based Drone Automatic Landing-guidanceSystem for Advanced Maritime Operations▼Abstract
Drones have gained increased interests from a variety of fields
such as logistics and environmental measurements. In the maritime
domain, their applications are wide spreading, including cargotransportation, weather observation, fishery exploration, red-tidemonitoring, port management, and detection of illegal ships.
However, safely navigating drones to ships is challenging due tothe swaying caused by waves and the occurrence of poor visibility
conditions such as fog and rain. To address this challenge, ourteam has been investigating a novel automatic landing-guidancesystem using high-resolution millimeter-wave radar, which istolerant to weather conditions. This article investigates the overallsystem, which consistently guides a drone at a distant point to alanding point for all-weather operation.

Mission area
Entry point

Attitude-adjustment
point

Landing point