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jeudi 5 novembre 2020

Samsung’s ISOCELL Vizion 33D is a 3D ToF sensor that could be coming to your next smartphone

After launching four new sensors as part of its ISOCELL 0.7μm product lineup earlier in September this year, Samsung has now added a new ToF sensor to its portfolio. The new ISOCELL Vizion 33D sensor offers enhanced depth-sensing capabilities for “best-in-class photography and AR/VR experiences.” Samsung claims that its new ToF sensor can be used for a variety of applications, ranging from 3D scanning to implementing video bokeh effect, as it features the ability to track moving objects with low latency.

The ISOCELL Vizion 33D sensor features a 4-tap demodulation system and 120fps support for accurate tracking of moving objects. The demodulation system allows each pixel in the sensor to receive four phase signals simultaneous (0°, 90°, 180°, and 270°), allowing the sensor to generate a depth image with just a single frame. This system also reduces motion artifacts significantly.

Samsung further adds that the ISOCELL Vizion 33D sensor is capable of accurately detecting the depth of an object up to 5 meters with high accuracy in both indoor and outdoor environments. And using ISOCELL’s pixel technology, the sensor can accurately separate objects from the background to deliver a 3D bokeh effect. The sensor also includes Deep Trench Isolation technology (DTI), which maximizes isolation between pixels to reduce crosstalk, and Backside Scattering Technology (BST) to enhance its quantum efficiency. Using these technologies, the sensor can generate high-precision depth images that can be used for secure facial authentication.

Along with the 3D applications, the ISOCELL Vizion 33D is also capable of assisting the main camera’s autofocus on mobile devices. The sensor has been designed to offer maximum power efficiency in 3D applications, and it has a total power consumption of under 400mW for both the IR illuminator and the ToF sensor.

Samsung ISOCELL Vizion 33D: Specifications

Specification Samsung ISOCELL Vizion 33D
Depth resolution 640 x 480
Pixel size 7μm
Optical format 1/3.2″
VCSEL wavelength 940mm
Distance range 0.2-5.0m
Quantum Efficiency 34% @940 nm
Demodulation Contrast 85%
Depth precision <0.1%
Depth accuracy
  • Indoor: <1.0%
  • Outdoor: <2.0%
ADC bit resolution 10 bit, 12 bit
Raw image frame rate 60fps @4-tap (typical)
Output interface 2-lane MIPI CSI-2
Power consumption 160mW (sensor only)

Source: Samsung

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Applications open for Realme UI 2.0 Open Beta based on Android 11 for the Realme X50 Pro

Realme was among the first Android OEMs to announce Android 11 beta for its flagship device back in June. As promised, the Chinese OEM rolled out the first Android 11 beta to its Realme X50 Pro a month later, joining the likes of OnePlus 8/8 Pro, Oppo Find X2/X2 Pro, Xiaomi, and Vivo, which had also rolled out a similar update to their newest flagships. Five months later, the company is now inviting more users to try out Android’s latest iteration through the Realme UI 2.0 Open Beta program. Unlike the first beta, which was limited to the Chinese variant of the Realme X50 Pro, the new Open Beta is available for the Indian variant — RMX2076PU to be precise.

Realme X50 Pro XDA Forums

If you’re interested in trying out the Realme UI 2.0 Open Beta based on Android 11, you’ll have to enroll your device in the beta program. Before you proceed, make sure your device is on firmware version A.37 – RMX2076PU_11.A.37.

To update your Realme X50 Pro to Realme UI 2.0 Open Beta, go to Settings > Software update > tap on the gear icon in the top right corner > select Trial Version > fill in your details and tap Apply Now. You should receive a software update shortly after. If you’re already using the Android 11 preview version, there’s no need to go through this process — you’ll directly receive this update.

If you encounter any bugs in the software or have suggestions for improvement, you can submit them here. You can also roll back to the latest stable build if you decide to leave the Open Beta program. You can do so by flashing the rollback package from here — do note that it will wipe all your data.

It should be noted that this beta software is meant for testing and feedback purposes only and is not suitable for average users. There’ll likely be a range of bugs and stability issues that will need to be ironed out before the stable release.

Realme hasn’t shared the concrete date for the final Android 11 release yet, but it shouldn’t take long now that the software is in Open Beta testing.


Source: Realme India Community

The post Applications open for Realme UI 2.0 Open Beta based on Android 11 for the Realme X50 Pro appeared first on xda-developers.



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mercredi 4 novembre 2020

Download: OnePlus 8T gets new OxygenOS 11 build with improvements to power consumption, camera, and more

Less than a week after rolling out OxygenOS 11.0.2.3 for the OnePlus 8T, OnePlus has started pushing another update for the device. The latest OxygenOS stable update for the OnePlus 8T adds to the previous update with a few more optimizations and bug fixes. It also includes the Android security patches for October 2020.

The OxygenOS 11.0.3.4 update for the OnePlus 8T includes optimizations for power consumption to reduce heating, improved accidental touch prevention, and camera stability enhancements. In addition, the update brings network connection optimizations and a few bug fixes. Here’s the full changelog for the latest stable update for the device:

  • System
    • Improved system power consumption performance to reduce heating
    • Improved mis-touch prevention to offer a better gaming experience
    • Optimized fluidity with some mainstream games to reduce lagging risks
    • Optimized user experience with Alert Slider by adding toast messages when switching among the 3 modes
    • Fixed the issue that the status bar kept hovering on the screen in landscape mode
    • Fixed the issue that Play Store could not install the app
  • Camera
    • Optimized the imaging effect to bring you with better shooting experience
    • Improved camera stability
  • Network
    • Optimized mobile network connection to improve the network intensity with signal
    • Fixed the small probability issue with network interruption while playing games

As with all OnePlus updates, the latest OxygenOS release will be rolled out in a staged fashion. Therefore, it will be a while before the update reaches all OnePlus 8T users. In case you wish to skip the wait, you can download the recovery flashable .zip files from the link below and install the update manually.

OnePlus 8T XDA Forums


Downloads for the OnePlus 8T

OxygenOS 11.0.3.4 (India)


Thanks to XDA Senior Member Some_Random_Username for the download links!

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Samsung unveils larger version of Galaxy Z Fold 2 for China

It was just a few months ago when Samsung released the Galaxy Z Fold 2, and already there’s a sequel — sort of. The company is launching a new device called the Samsung W21 5G in China, and it’s essentially the Galaxy Z Fold 2, but slightly taller.

The Samsung W21 is nearly identical to the Galaxy Z Fold 2, but as we mentioned, it’s taller. It’s unclear why Samsung decided to introduce a larger model, especially since the Galaxy Z Fold 2 is already pretty robust. But despite the obvious size difference, the main display is 7.6 inches, while the outer display is 6.23 inches. That’s the same as Samsung’s latest foldable.

Many of the device’s other specs are unchanged, including the 4500mAh battery and triple-camera setup. It also features a Snapdragon 865+ processor, 12GB of RAM, 512GB of internal storage, and Android 10. The device also sports a side-mounted fingerprint sensor, wireless charging, 5G connectivity, and two SIM slots.

Samsung W21 official image

The Samsung W21 sports a sleek gold design that appears to be textured on the back. It certainly looks flashy, although not quite as elegant as the Galaxy Z Fold 2, which comes in a variety of colors.

Curiously, the Galaxy Z Fold 2 5G is already available in China, so Samsung will be selling two slightly different versions of the same device. It’s not unusual for companies to sell a larger and smaller version of the same smartphone, but it is a little different for this new device to be called the Samsung W21 5G, as if it’s something completely different, rather than the Galaxy Z Fold 2 Plus or something similar.

Samsung Galaxy Z Fold 2 Forums

The new Samsung W21 is available in China for 19,999 CNY (compared to the Galaxy Z Fold 2 at 17,000 CNY), so there’s an added cost if you want the larger frame. You can’t go wrong either way, however, because Samsung really stepped up its foldable game this year, showing that the form factor could really be the form factor of the future.


Source: Samsung

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Xiaomi’s new Mi Box 4S Pro supports 8K video playback

Over the past few years, Xiaomi has released a great lineup of set-top boxes, from the Mi Box 4S to the Mi TV Stick. Now, the company is releasing another streaming device (via Android Authority), and it features support for 8K video playback.

Named the Mi Box 4S Pro, Xiaomi’s newest set-top box is one of the only 8K-capable set-top boxes available — and at such an affordable price, is very hard to beat. It features HDMI 2.1, 16GB of storage, 2GB of RAM, and supports Bluetooth voice controls. It also sports Xiaomi’s MIUI, which should be familiar to anyone who has used one of the company’s streaming devices in the past.

Xiaomi My Box 4S Pro

Xiaomi’s Mi Box 4S Pro is a notable upgrade from the Mi Box 4S, which featured 2GB of RAM, 8GB of storage, and support for 4K 60fps video playback. That device also supported voice controls, Dolby Audio and DTS Sound, making it one of the most feature-packed streaming devices for its price. Adding support for 8K video playback is an obvious play for the future.

Unfortunately, not much else is known about the Mi Box 4S Pro, including what processor it runs. But that likely won’t matter to people when they see it supports 8K video playback.

The Mi Box 4S Pro will retail for 399 yuan (about $60) when it launches in China. Preorders for the device will be available beginning November 5. As of now, it’s unclear if Xiaomi’s latest set-top box will launch in any markets outside of China, but we’ll keep our eyes peeled if it does.

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LineageOS adopts SeedVault as its open source backup solution

Android’s built-in backup mechanism, which relies on the Google Play Services framework, can backup contacts, call history, text messages, and certain application data and device settings to users’ individual Google Drive accounts. However, backing up and restoring apps can be a pain, especially when you switch between phones from different OEMs or prefer to use a custom ROM without any Google apps. The Mountain View giant may be removing the fan-favorite ADB backup and restore tool, which means users have to opt for root-only tools for better backups. In light of these concerns, the developers over at LineageOS have chosen SeedVault as its default backup solution.

LineageOS XDA Forums

For those not familiar with SeedVault, it is an open-source backup app that uses the same internal APIs as adb backup. The application doesn’t need root access, but it must be compiled with the operating system. The backup location is user-configurable, with options ranging from a USB flash drive to a remote self-hosted cloud alternative such as NextCloud. This makes SeedVault a particularly viable option for users who doesn’t want to store their personal data to Google’s proprietary cloud-based storage.

All the backup contents created by SeedVault are encrypted by client-side encryption (AES/GCM/NoPadding), which is unlockable with a 12-word randomly-generated key compliant with the BIP39 standard. Moreover, power users have the freedom to decrypt, inspect, and re-encrypt their backups through an external standalone utility .

Below you can catch a glimpse of SeedVault in action. Note that the tweet was posted long before the app made its way to LineageOS, thus some UI elements might be different from the current implementation.

The source code of the LineageOS version of SeedVault can be found here. With the addition of more contributors who can maintain or port the backup solution to different Android forks, we are hoping to see the list of SeedVault-supported custom ROMs grow in the coming days.


Thanks to XDA Senior Member kurtn for the tip!

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ARM announces the Cortex-A78C CPU for laptops with up to 8 big cores

In May, ARM announced its latest IP for mobile in the form of the Cortex-A78 CPU, Mali-G78 GPU, and the Ethos-N78 NPU. The company also announced its Cortex-X Custom (CXC) program, with the Cortex-X1 being the first CPU core under the program. The program allows for customization and differentiation beyond the traditional roadmap of ARM’s Cortex products. The company says it has seen great success with this generation of ARM-based processors and the rapid expansion into markets outside of traditional phones. Now, the company is looking to address some of these markets with its latest CPU product, the Cortex-A78C.

The ARM Cortex-A78C CPU is a new CPU that is built on the foundation of the regular Cortex-A78. ARM says it is purpose-built to be a part of a scalable and secure compute solution for next-generation on-the-go devices such as always-on laptops. The Cortex-A78 family includes the regular Cortex-A78 for smartphones, the Cortex-A78AE for complex autonomous applications, and now the Cortex-A78C for laptops. The value draw of the Cortex-A series has been PPA (performance, power, and area). The Cortex-A78C builds on these designs with the latest architecture updates for enhanced compute performance, scalability, and security.

The Cortex-A78C’s major feature is that it enables more homogenous multi-big core computing with support for up to eight big CPU core clusters. The octa-core (up to eight big CPU cores) lead to more scalable multi-threaded performance improvements when compared to the regular Cortex-A78, which supports only four big CPU cores along with four little CPU cores (in the form of the Cortex-A55) in the DynamIQ shared unit (DSU). ARM notes that big.LITTLE is the de facto standard in mobile, and it will remain so in the future. The eight core configurations of the Coretx-A78C will lead to higher multi-threaded performance, which is a plus for demanding workloads. The Cortex-A78C also increases the L3 cache to 8MB to further improve performance, especially for workloads having large data sets.

ARM says these enhanced features are ideal for enabling high performance, heavily threaded workloads, such as physics in gaming and professional productivity applications. The eight core configurations further extend and enhance all-day gaming capabilities when combined with Mali GPUs, as according to ARM, the Mali-G78 provides the graphics performance and battery life improvements for more immersive on-the-go gaming experiences. The increased L3 cache, on the other hand, will empower developers to bring enhanced gaming experiences such as AAA gaming to next-generation devices.

The Cortex-A78C also provides updates for data and device security. ARM points out the Pointer Authentication (PAC) feature, which minimizes the attack surface to ensure data on the device is kept secure. The company notes that sophisticated computer attacks exploit the use of gadgets in Return-Orientated-Programming (ROP) and Jump-Orientated-Programming (JOP). PAC significantly reduces exploits and prevents attackers from taking control of the software control flow, which loads to ROP exploits being reduced by over 60% and JOP exploits by over 40%. According to ARM, reducing these potential exploits is necessary for ensuring that users’ data is kept safe on devices even when installing third-party apps.

In conclusion, ARM says that while the Cortex-A78 is a mobile-focused core for next-generation phones, the Cortex-A78C’s new features provide the performance, scalability, and security needed for the next-generation on-the-go devices

ARM’s announcement of the Cortex-A78C is timely when considering the rumored launch timing of Apple Silicon-powered Macs, which are generally expected to be announced on November 10 at Apple’s online event. The announcement may also come at a right moment for Qualcomm. At its Tech Summit in December, the company may announce a successor to the Snapdragon 8cx SoC for always-on PCs, which was launched nearly two years ago with four ARM Cortex-A76 big cores. Moving to eight Cortex-A78C cores along with a successor to the Adreno 680 would provide quite a big performance boost.


Source: ARM

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