This paper presents two novel low cost, double-and-triple-node-upset tolerant latch designs. First, a novel low cost and double-node-upset (DNU) completely tolerant (LCDNUT) latch design is proposed. The latch mainly comprises a storage module (SM) feeding back to a 3-input C-element. The SM mainly consists of eight input-split inverters. Since the inputs of the C-element cannot be simultaneously flipped, the latch tolerates any DNU in the SM. When a single node in the SM and the output node are affected, the latch can self-recover from the DNU. Second, to completely tolerate any triple-node-upset (TNU), by replacing the C-element in the LCDNUT latch with a two-level error-interceptive module constructed from triple C-elements, a novel low cost and TNU completely tolerant (LCTNUT) latch design is proposed. Simulation results demonstrate the robustness of the proposed latches. Furthermore, due to the use of a high-speed transmission path, the clock-gating technology and fewer transistors, the proposed LCTNUT latch reduces the delay-power-area product by approximately 99.39% and has a low sensitivity to the process-voltage-and-temperature variation effects, compared with currently the only TNU completely tolerant latch design.

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Purpose The purpose of this paper is to investigate factors that influence the patients’ intentions to visit doctors face-to-face for consultations from the perspective of online doctor–patient interaction. Justice theory, SERVQUAL and the halo effect are integrated to develop a research model based on the performance-evaluation-outcome framework. The authors hypothesize that perceived justice and service quality are the significant factors in reflecting the performance of online doctor–patient interaction, which influences patient satisfaction evaluation and online and offline behavioral intentions. Design/methodology/approach The study conducted an online survey to collect data. Patients on a healthcare consulting website were invited to participate in the survey. The research model and hypotheses were tested with 254 collected data from patients and analyzed using the partial least squares method. Findings The results show that perceived justice and service quality have a positive effect on patient satisfaction, and satisfaction and the intention of online consultation have a positive effect on the intention of face-to-face consultation. Practical implications This study offers suggestions on how doctors interact with patients and build their brand image. The findings also offer effective insights into improving doctors’ online services to retain patients and even encourage patients to go to clinics. Originality/value Online health consultation is one of the most popular online health services and is growing quickly. After patients consult online doctors, they are able to visit their doctors in person for further diagnosis and treatment if they have the need. This study investigates how patients’ online interactive experience influences their offline behavioral intentions, which are different from most of the past literature on eHealth.