28 innovations from Bar-Ilan University, available for licensing, co-investment, or spin-out through BIRAD.
Grinberg Ilya
"מכשירים וחומרים דיאלקטיים של מתנדים בקנה מידה אטומי בתדר רדיו ומיקרוגל
Shor Joseph
The Vcc level and temperature of IC’s are important parameters which determine the power / performance. Resonances in the package and platform can cause significant AC voltage droops which can degrade functionality, requiring additional guard-band. Prior-art droop detectors utilize digital delay circuits, such as tunable replica circuits to measure these droops. However, the delay is a strong function of temperature as well as the DC Vcc level, making it difficult to differentiate the AC droop across different voltage and temperature levels. It is proposed to utilize a current controlled oscillator (CCO) with an analog bias to mitigate the voltage and temperature dependencies, such that only the AC droop is measured. The CCO frequency is independent of the DC Vcc level, while the temperature is also characterized along with the AC droop, such that both temperature and droop levels can be extracted. The sensor can measure droops and temperature to an accuracy of 10mV and ±3oC respectively. The circuit occupies 8800 μm2 in 65nm with a power consumption of 297 µW. This circuit is very useful to characterize the power grid in design for test (DFT) applications as well as on-the-fly real time chip operation.
Shor Joseph
A Droop mitigation system is featured which includes an inverter-based droop detector as well as Dual Mode Logic (DML). The droop detector is based on capacitor ratios and is thus insensitive to PVT. The DML logic can alter its power/performance ratio based on the droop level input it receives from the detector, such that the critical timings are preserved. The droop detector consumes 62uW, has a response time of 2ns and an accuracy of 0.9%, making it one of the fastest, most accurate, and lowest power droop detectors in its class. A ripple carry adder is demonstrated, with DML logic in its critical path, which can maintain timing for droops as high as 400mV.
Shor Joseph
A new architecture of an on-die process monitor circuit is demonstrated in 28nm. The proposed circuit can extract the threshold voltage, VTH, and random mismatch of a transistor using multiple extraction methods including the second derivative method. A sigma-delta modulator analog-to-digital converter samples the output to enable on-die processing of the results. A VDS voltage control loop enables VTH extraction in both the linear and saturation regions of the device. The circuit has a compact area of 5510aμm2
Peer Avraham
The discovery describes an innovative source of broad-band, highly-coherent quantum light and high-efficiency photon-pair generation with low pump power. Additionally, a novel method for self-measurement of the quantum coherence is described - the source itself can be used to measure its own performance. The source is based on a nonlinear crystal with polished and coated end facets to create a monolithic broad-band Optical Parametric Oscillator (OPO). Its advantages over common sources of nonlinear crystals in single-pass include: 1. A monolithic OPO provides ideal coherence quality due to minimizing internal losses to a minimum. 2. The required pump power for a given photon flux is low. The threshold for lasing in such a source can be low (less than 5 watts, sometimes down to hundreds of milliwatts, depending on design). 3. Integral dispersion compensation in the crystal mirrors ensures a maximal bandwidth of tens of nanometers and above, generating many pairs of squeezed photons and allowing for a very high flux of entangled photons - up to terahertz pairs per second, which is a significant advantage for quantum communication applications in wavelength-division multiplexing. 4. Mode spacing convenient for telecom (around 10 GHz) in the telecommunication range (1550 nanometers) allows for the construction of separate channels, which is crucial for communication applications. 5. The monolithic design of the OPO ensures passive stability, which facilitates the feedback loop for stabilizing the pump laser to the resonator frequency. Moreover, the concentric design of the resonator ensures stability and resistance to spatial misalignments. Furthermore, the discovery includes a method for self-measurement of the generated coherence using parametric homodyne detection within the crystal itself. Specifically, by operating the monolithic source in a ring resonator configuration, the source can be used in one direction (with the clock) to generate quantum light, and in the opposite direction for measurement, enabling wide-bandwidth homodyne-based measurement, as described in the accompanying documents. Together, the source and measurement method provide a foundation for various applications of quantum technology, such as secure quantum communication (QKD) and wide-bandwidth quantum sensing.
NESSIM GILBERT
Osteoarthritis (OA) is a major burden that affects ~ 40 million of EU citizens, with enormous direct and indirect costs for the European healthcare systems, quantified in ~ 50.4 billion euros per year. This disease involves the degeneration of cartilage and other joint structures and is one of the most common causes of pain and disability in middle-aged and elderly people. ADMAIORA aims in the long-term at increasing the healthy and active lifespan of people affected by OA, by considerably slowing down or even stopping the degeneration process, thus delaying or avoiding surgical interventions for total joint replacement. Within the project time-frame the target is to achieve a 60% reduction of degeneration in OA animal models treated with the ADMAIORA technologies, with respect to control (untreated) ones, after 4 weeks, and a 90% reduction after 3 months. To achieve this ambitious objective the Consortium will evolve and merge technologies that already showed a high potential as experimental proof of concepts (TRL = 3) and will bring them at a preclinical level (TRL = 5). The ADMAIORA Consortium will develop biosynthetic hydrogels embedded with carbon-based nanomaterials, conferring higher mechanical and lubrication properties, and piezoelectric nanoparticles enabling responsivity to remote wireless ultrasound waves. Stem cells derived from autologous adipose tissue, which already demonstrated anti-inflammatory and regenerative properties, will be entrapped in the hydrogels. Materials and cells will be delivered in situ through an innovative handheld 3D bioprinter, embedded in an arthroscopic tool. A custom brace will be designed and equipped with ultrasound probes for both monitoring the joint status and stimulating the implanted piezoelectric nanobiomaterial. A dedicated App will allow a direct connection between patient and physician in an Internet of Things framework. Overall, ADMAIORA will target a ground- breaking paradigm that may revolutionize OA treatment.
Teman Adam
The invention is the product of my Magneton project with CEVA. It includes a novel architecture for generating flip flop based register files with many ports (more than two read and write ports). The architecture uses clock gating based on word selection to reduce power consumption. It uses guided placement to reduce area.
Sharon Gannot
In this work, we propose using diffusion models for speech inpainting, i.e., restoring missing or severely corrupted speech segments obfuscated by severe noise. We leverage the ability of diffusion models to generate realistic speech conditioned on the available context. Our approach progressively refines the reconstructed speech by modeling the missing segments as a denoising process, ensuring smooth transitions and high-fidelity synthesis. As we emphasize semantically correct speech generation, we use automatic speech recognition with a language model (ASR +LM) to guide the speech generation process. Our findings demonstrate the proposed model’s ability to handle a wide range of scenarios, from short gaps to longer missing segments, making it suitable for reconstructing a speech signal corrupted by severe noise, e.g., explosive noise. Our solution has several distinct attributes: 1) It is independent of the speaker, i.e., the algorithm is not limited to specific known speakers; 2) it preserves the speaker’s natural voice style and prosody; and 3) it maintains the natural environment, e.g., reverberation level while eliminating the strong noise.
Klein Shmuel Tomi
Extending recently suggested methods, a new dynamic compression algorithm is proposed, which assigns larger weights to characters that have just been coded by means of an increasing weight function. Empirical results present its efficient compression performance, which, for input files with locally skewed distributions, can improve beyond the lower bound given by the entropy for static encoding, at the price of slower running times for compression, and comparable time for decompression.
Sharon Gannot
In this work, we propose a method to imitate the human ability to selectively attend to a single speaker, even in the presence of multiple simultaneous talkers. To achieve this, we propose a novel approach for binaural target speaker extraction that leverages the listener’s Head-Related Transfer Function (HRTF) to isolate the desired speaker. Notably, our method does not rely on speaker embeddings, making it speaker-independent and enabling strong generalization across multiple speech datasets in different languages. We employ a fully complex-valued neural network that operates directly on the complex-valued Short-Time Fourier transform (STFT) of the mixed audio signals. This approach deviates from conventional methods that utilize spectrograms or treat the real and imaginary components of the STFT as separate real-valued inputs. The method is first evaluated in an anechoic, noise-free scenario, where it demonstrates excellent extraction performance while effectively preserving the binaural cues of the target signal. Next, it is tested under mild reverberation conditions. The method remains robust to reverberant conditions, maintaining speech clarity, preserving source directionality, and simultaneously reducing reverberation. Demo-page: https://bi-ctse-hrtf.github.io
Lindell Yehuda
BIT DECOMPO SITION APPARTUS FOR MAC
Shor Joseph
This is a disclosure which replaces disclosure # 447 for which a provisional patent has been filed. The Vcc level and temperature of IC’s are important parameters which determine the power / performance. Resonances in the package and platform can cause significant AC voltage droops which can degrade functionality, requiring additional guard-band. Prior-art droop detectors utilize digital delay circuits, such as tunable replica circuits to measure these droops. However, the delay is a strong function of temperature as well as the DC Vcc level, making it difficult to differentiate the AC droop across different voltage and temperature levels. It is proposed to utilize a current controlled oscillator (CCO) with an analog bias to mitigate the voltage and temperature dependencies, such that only the AC droop is measured. The CCO frequency is independent of the DC Vcc level, while the temperature is also characterized along with the AC droop, such that both temperature and droop levels can be extracted.
