Like many other big tech companies, Pinterest says it knows it has a problem with diversity, or lack thereof. Despite having users who are overwhelmingly female, Pinterest’s employees are 60% male, and 92% of the company’s 400 employees are white or Asian. In a blog post published Thursday, the photo-sharing social media giant revealed that only 21% of the San Francisco-based company’s tech positions are filled by women, and more than 80% of its executives are male. These imbalances are common in the tech world, Pinterest software engineer Tracy Chou said in an interview with The Times. Chou has been advocating for diversity in the tech industry at Pinterest and in Silicon Valley. Silicon Valley-based tech companies like Google, Facebook, Twitter and Yahoo have all published uninspiring diversity data over the last few weeks, and information collected by Chou breaking down gender in computer engineering reveals an industry-wide problem. But Chou, with stints at Facebook and Quora...

Audio systems maker Bose Corp. filed a complaint to stop the sale of several headphones made by Beats Electronics, accusing the Culver City firm of infringing several patents for noise-reduction methods. The complaint, filed Friday with the International Trade Commission, alleges that the Beats Studio and Beats Studio Wireless headphones used patented technology owned by Bose. The patents relate to a method that uses a microphone within a headphone to detect unwanted ambient noise. The headphone then produces a sound wave that cancels out that noise. The Beats headphones are made by Fugang Electronic Co. in China and imported by the Irish firm PCH International, both of which also were named in the Bose complaint. Bose said its patented technology is used in its QuietComfort 20 and QuietComfort 20i headphones. The Framingham, Mass., company wants the commission to investigate the matter and ban imports and sales of the infringing Beats headphones. Bose also seeks unspecified damages.  ...

Trip Hawkins' educational gaming company If You Can on Thursday released an expansion of its iPad game that aims to teach children lessons about social and emotional behavior. This year Hawkins, formerly the founder and chief executive of games giant Electronic Arts, unveiled the new game, called "If." Trying to meld the best techniques of gameplay with educational objectives, the game seeks to teach children lessons on things such as compassion and bullies by taking them on a journey with a rich, imaginary set of characters. The game will eventually enable children to move through a series of chapters, and on Thursday If You Can released the second chapter of the game. In addition, the game now has a dashboard for parents to monitor their childrens' progress and to help them reinforce lessons in the real world. The game is free to download for the iPad and iPhone, and it can also be played on a Mac or PC. The first chapter is free to play. After that, the games requires a $5-a-month...

When a company saturates its home market with a once-hot product, expect it to pump up its presence in foreign lands to keep the momentum going. That old-time tactic is proving tough in tablet computers, where leaders Apple and Samsung are under heavy pressure in emerging markets from China’s Lenovo, Taiwan’s ASUS, and other tablet upstarts.   Apple iPad shipments took a dive in the last quarter ended in June, down 9.3%. South Korea’s Samsung recently reported a quarterly tablet  shipment increase of only 1.6%. Lenovo and ASUS, meantime, were up 64.7% and 13.1%. Both companies continue to dominate the global tablet market – heading toward $85 billion this year, according to ABIresearch – but their position is under threat. “We’re seeing a lot of new entrants,” IDC Analyst Jean Philippe Bouchard told The Times. New tablet demand is gaining strength in regions where consumers want cheap devices, he said – not the kinds of products Apple and Samsung make. "It's low margin and high volume...

Following in the footsteps of tech giants such as Facebook and Google, Twitter released employee diversity data Wednesday revealing that the social media heavyweight mainly employs white men. Overall, Twitter reported a 70% male workforce, with 90% of tech positions filled by men. Non-tech positions were split 50-50, but leadership jobs for the San Francisco company were also dominated by males at 79%. The company also reported ethnicity data for U.S. employees, revealing a workforce that is 59% white and 29% Asian. Worldwide, Twitter employees around 3,000 people. “We are keenly aware that Twitter is part of an industry that is marked by dramatic imbalances in diversity — and we are no exception,” Twitter executive Janet Van Huysse said in a statement. “By becoming more transparent with our employee data, open in dialogue throughout the company and rigorous in our recruiting, hiring and promotion practices, we are making diversity an important business issue for ourselves.” The lack...

An international cyber-crime ring was able to take over StubHub user accounts to steal identifying information and use victims’ credit cards to purchase tickets to concerts and sporting events, authorities announced Wednesday. Six people were indicted in connection with the alleged scheme to defraud users on the popular online ticket marketplace. According to the Manhattan District Attorney’s office, the proceeds were transferred through a global network of accomplices in the United States, Britain, Russia and Canada. StubHub, an EBay subsidiary, allows customers to buy and sell tickets to concerts, sporting events and other live entertainment. The company, according to authorities, discovered that more than a thousand accounts had been compromised by hackers who were fraudulently hijacking users’ credit cars. StubHub implemented new security measures to stop the fraud, but authorities said the hackers were able to get around the new hurdles by using credit card information stolen from...

Apple won't officially release its OS X Yosemite desktop software until this fall, but on Thursday, the Cupertino company will give 1 million users early access to a beta version of the operating system.  The last time Apple gave the public beta access a new desktop operating system was in 2000, when it charged $29.95 to try out the first version of OS X. This time, the beta version is free. Apple says it wants users to test drive the software and give feedback. "Your comments will help us make OS X better for all Mac users," Apple says on the Web page where people can go to sign up for the beta program. Twitter: @sal19

Despite its ecosystem of products, Apple's business relies heavily on the sales of iPhones. In the third quarter results reported on Tuesday, iPhone sales were 52.7% of revenue. But what's the second most important business? That's harder to answer, and it may shift in the coming quarters thanks to the category Apple calls "iTunes/Software/Services."   Right now that category is fourth, behind iPads and Mac. But not by much. The company reported revenue of $5.889 billion from iPads and $5.54 billion from Macs.  The iTunes, etc. category brought in $4.485 billion, up 12% from a year ago, and is coming on strong. "For the first nine months of this fiscal year, the line item that we call iTunes Software and Services has been the fastest growing part of our business," said Apple chief executive Tim Cook in a conference call with analysts on Tuesday. "iTunes billings grew 25% year-over-year in the June quarter and reached an all-time quarterly high, thanks to the very strong results from...

Duolingo, the free language-learning service, is releasing an app called Test Center that lets users take a standardized test on their mobile device and potentially earn certification for their English skills.  Test Center is designed to make standardized tests more accessible to Duolingo users, particularly those outside the U.S., who want to apply for jobs and schools that require English certificates. Previously, you could get a language certificate only by physically going to a center and paying at least $250 to take a test, Duolingo Chief Executive Luis von Ahn told The Times.  ------------ FOR THE RECORD An earlier version of this post incorrectly said Carnegie Mellon University would help Duolingo get more academic partners to accept its certificates. Carnegie Mellon University said it is not working with other schools. ------------ "Most of these tests are usually being taken in developing countries, and there, $250 can be up to a month's salary," von Ahn said. "You have to...

Apple posted strong fiscal third-quarter results driven by iPhone and Mac sales. The company on Tuesday reported quarterly revenue of $37.4 billion and net profit of $7.7 billion, or $1.28 per diluted share. Analysts had expected profit of $1.23 a share. That revenue was up from $35.32 billion a year earlier, and at the high end of the $36 billion to $38 billion forecast from Apple. However, it was slightly below analysts' forecasted revenue of $37.98 billion for the quarter. Apple reported that it sold 35.2 million iPhones, up from 31.2 million a year earlier. That topped the consensus analyst estimate of 35 million, but fell short of some of the more optimistic projections. For instance, Morgan Stanley analyst Katy Huberty estimated that 39 million iPhones were sold during the quarter. Perhaps most troubling for Apple, though, was another dismal performance by the iPad. Apple sold only 13.2 million in the quarter, down from 16.3 million in the previous quarter and 14.6 million a...

The purchase of Nokia’s mobile-phone unit cut into Microsoft’s profit, but a surging cloud business and a new effort to launch its applications on a greater number of gadgets kept analysts optimistic about the company’s prospects. The maker of Windows, Office, Xbox and a number of mobile devices said its fourth-quarter earnings per share were $0.55, behind estimates of $0.60, with the Nokia acquisition costing about $0.08 a share. Sales for the quarter reached $23.4 billion, up 18% from the fourth quarter of last year, with a $2-billion boost provided by Nokia’s acquisition in mid-April. Daniel Ives, an analyst at FBR Capital Markets, described the mixed results as relieving for investors amid a “choppy environment.” “As integration goes on between Nokia and Microsoft, there’s going to be those unexpected speed bumps, but the street is looking through that,” Ives said. “You see a lot more optimism around shares.” Part of the reason for optimism continues to be new chief executive Satya...

Flexible work arrangements and better prospects to grow their skills could attract thousands of recently laid off employees at Microsoft to jobs at startups. At least that’s what helped persuade Chandra Shekaran, a general manager in Microsoft’s Bing search unit, to jump to El Segundo-based Velocify last January. “I just felt after 15-plus years, my rate of growth could be accelerated in a startup environment,” Shekaran said recently. “It was a very different company from when I started, and I forced myself to leave.” One of Shekaran’s former bosses, Satya Nadella, became chief executive of Microsoft in February. Last week, Nadella axed as many as 18,000 positions, aiming to make the company more nimble. Forced out the door, the employees are poised to see plenty of demand from quickly growing startups, Shekaran said. He’s hoping to hire some of them to start an engineering office in the Seattle area, where about 1,300 Microsoft staffers were let go. “We want to use the talent wherever it...